diff --git a/search/categories_cache.cpp b/search/categories_cache.cpp
index 336967f3ec..2f828d943d 100644
--- a/search/categories_cache.cpp
+++ b/search/categories_cache.cpp
@@ -11,7 +11,7 @@
 #include "base/assert.hpp"
 #include "base/levenshtein_dfa.hpp"
 
-#include "std/vector.hpp"
+using namespace std;
 
 namespace search
 {
diff --git a/search/categories_cache.hpp b/search/categories_cache.hpp
index 755161fe99..e0e5d9bffd 100644
--- a/search/categories_cache.hpp
+++ b/search/categories_cache.hpp
@@ -7,8 +7,9 @@
 
 #include "base/cancellable.hpp"
 
-#include "std/map.hpp"
-#include "std/set.hpp"
+#include <cstdint>
+#include <map>
+#include <vector>
 
 namespace search
 {
@@ -24,7 +25,7 @@ public:
     source.ForEachType([this](uint32_t type) { m_categories.Add(type); });
   }
 
-  CategoriesCache(set<uint32_t> const & types, ::base::Cancellable const & cancellable)
+  CategoriesCache(std::vector<uint32_t> const & types, ::base::Cancellable const & cancellable)
     : m_cancellable(cancellable)
   {
     for (uint32_t type : types)
@@ -42,7 +43,7 @@ private:
 
   CategoriesSet m_categories;
   ::base::Cancellable const & m_cancellable;
-  map<MwmSet::MwmId, CBV> m_cache;
+  std::map<MwmSet::MwmId, CBV> m_cache;
 };
 
 class StreetsCache : public CategoriesCache
diff --git a/search/geocoder.hpp b/search/geocoder.hpp
index 749e04197e..fd49e3408f 100644
--- a/search/geocoder.hpp
+++ b/search/geocoder.hpp
@@ -35,7 +35,6 @@
 #include "base/string_utils.hpp"
 
 #include "std/limits.hpp"
-#include "std/set.hpp"
 #include "std/shared_ptr.hpp"
 #include "std/string.hpp"
 #include "std/unique_ptr.hpp"
@@ -83,7 +82,7 @@ public:
     m2::RectD m_pivot;
     Locales m_categoryLocales;
     shared_ptr<hotels_filter::Rule> m_hotelsFilter;
-    set<uint32_t> m_preferredTypes;
+    vector<uint32_t> m_preferredTypes;
     shared_ptr<Tracer> m_tracer;
   };
 
diff --git a/search/intermediate_result.cpp b/search/intermediate_result.cpp
index bc4d040d6a..a58d53e6d1 100644
--- a/search/intermediate_result.cpp
+++ b/search/intermediate_result.cpp
@@ -19,11 +19,14 @@
 #include "base/string_utils.hpp"
 #include "base/logging.hpp"
 
+#include <algorithm>
 #include <cstddef>
 #include <cstdint>
 
 #include "3party/opening_hours/opening_hours.hpp"
 
+using namespace std;
+
 namespace search
 {
 namespace
@@ -132,13 +135,14 @@ bool RankerResult::IsStreet() const
   return m_geomType == feature::GEOM_LINE && ftypes::IsStreetChecker::Instance()(m_types);
 }
 
-uint32_t RankerResult::GetBestType(set<uint32_t> const * pPrefferedTypes) const
+uint32_t RankerResult::GetBestType(vector<uint32_t> const & preferredTypes) const
 {
-  if (pPrefferedTypes)
+  ASSERT(is_sorted(preferredTypes.begin(), preferredTypes.end()), ());
+  if (!preferredTypes.empty())
   {
     for (uint32_t type : m_types)
     {
-      if (pPrefferedTypes->count(type) > 0)
+      if (binary_search(preferredTypes.begin(), preferredTypes.end(), type))
         return type;
     }
   }
diff --git a/search/intermediate_result.hpp b/search/intermediate_result.hpp
index e509b1ba0f..c564a39ad1 100644
--- a/search/intermediate_result.hpp
+++ b/search/intermediate_result.hpp
@@ -9,7 +9,9 @@
 
 #include "indexer/feature_data.hpp"
 
-#include "std/set.hpp"
+#include <cstdint>
+#include <string>
+#include <vector>
 
 class FeatureType;
 class CategoriesHolder;
@@ -62,7 +64,7 @@ public:
 
   /// For RESULT_FEATURE and RESULT_BUILDING.
   RankerResult(FeatureType const & f, m2::PointD const & center, m2::PointD const & pivot,
-               string const & displayName, string const & fileName);
+               std::string const & displayName, std::string const & fileName);
 
   /// For RESULT_LATLON.
   RankerResult(double lat, double lon);
@@ -78,7 +80,7 @@ public:
   }
 
   FeatureID const & GetID() const { return m_id; }
-  string const & GetName() const { return m_str; }
+  std::string const & GetName() const { return m_str; }
   feature::TypesHolder const & GetTypes() const { return m_types; }
   Type const & GetResultType() const { return m_resultType; }
   m2::PointD GetCenter() const { return m_region.m_point; }
@@ -94,7 +96,7 @@ public:
 
   bool IsEqualCommon(RankerResult const & r) const;
 
-  uint32_t GetBestType(set<uint32_t> const * pPrefferedTypes = 0) const;
+  uint32_t GetBestType(std::vector<uint32_t> const & preferredTypes = {}) const;
 
 private:
   friend class RankerResultMaker;
@@ -117,7 +119,7 @@ private:
   RegionInfo m_region;
   FeatureID m_id;
   feature::TypesHolder m_types;
-  string m_str;
+  std::string m_str;
   double m_distance;
   Type m_resultType;
   RankingInfo m_info;
@@ -127,5 +129,5 @@ private:
 
 void ProcessMetadata(FeatureType const & ft, Result::Metadata & meta);
 
-string DebugPrint(RankerResult const & r);
+std::string DebugPrint(RankerResult const & r);
 }  // namespace search
diff --git a/search/processor.cpp b/search/processor.cpp
index 333f39d33e..0529278007 100644
--- a/search/processor.cpp
+++ b/search/processor.cpp
@@ -276,10 +276,8 @@ void Processor::SetQuery(string const & query)
   // Get preferred types to show in results.
   m_preferredTypes.clear();
   ForEachCategoryType(QuerySliceOnRawStrings<decltype(m_tokens)>(m_tokens, m_prefix),
-                      [&](size_t, uint32_t t)
-                      {
-                        m_preferredTypes.insert(t);
-                      });
+                      [&](size_t, uint32_t t) { m_preferredTypes.push_back(t); });
+  my::SortUnique(m_preferredTypes);
 }
 
 m2::PointD Processor::GetPivotPoint(bool viewportSearch) const
@@ -503,7 +501,7 @@ void Processor::InitParams(QueryParams & params) const
     params.GetTypeIndices(i).push_back(index);
   };
   auto const tokenSlice = QuerySliceOnRawStrings<decltype(m_tokens)>(m_tokens, m_prefix);
-  set<uint32_t> types;
+  vector<uint32_t> types;
   bool const isCategorialRequest =
       FillCategories(tokenSlice, GetCategoryLocales(), m_categories, types);
   params.SetCategorialRequest(isCategorialRequest);
diff --git a/search/processor.hpp b/search/processor.hpp
index 238cf789b0..a62ab42f5a 100644
--- a/search/processor.hpp
+++ b/search/processor.hpp
@@ -28,7 +28,6 @@
 
 #include <cstddef>
 #include <cstdint>
-#include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ -123,7 +122,7 @@ protected:
   std::string m_query;
   QueryTokens m_tokens;
   strings::UniString m_prefix;
-  std::set<uint32_t> m_preferredTypes;
+  std::vector<uint32_t> m_preferredTypes;
 
   m2::RectD m_viewport;
   m2::PointD m_position;
diff --git a/search/ranker.cpp b/search/ranker.cpp
index 2d679db1bc..6fa6e7b225 100644
--- a/search/ranker.cpp
+++ b/search/ranker.cpp
@@ -424,7 +424,7 @@ Result Ranker::MakeResult(RankerResult const & rankerResult, bool needAddress,
     case RankerResult::Type::TYPE_FEATURE:
     case RankerResult::Type::TYPE_BUILDING:
     {
-      auto const type = rankerResult.GetBestType(&m_params.m_preferredTypes);
+      auto const type = rankerResult.GetBestType(m_params.m_preferredTypes);
       return Result(r.GetID(), r.GetCenter(), name, address,
                     m_categories.GetReadableFeatureType(type, m_params.m_currentLocaleCode), type,
                     r.GetMetadata());
@@ -643,7 +643,7 @@ void Ranker::ProcessSuggestions(vector<RankerResult> & vec) const
 
 string Ranker::GetLocalizedRegionInfoForResult(RankerResult const & result) const
 {
-  auto const type = result.GetBestType(&m_params.m_preferredTypes);
+  auto const type = result.GetBestType(m_params.m_preferredTypes);
 
   storage::TCountryId id;
   if (!result.GetCountryId(m_infoGetter, type, id))
diff --git a/search/ranker.hpp b/search/ranker.hpp
index 1b702e1d35..b7df6e4f47 100644
--- a/search/ranker.hpp
+++ b/search/ranker.hpp
@@ -23,7 +23,6 @@
 
 #include <cstddef>
 #include <cstdint>
-#include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ -52,7 +51,7 @@ public:
     m2::RectD m_viewport;
     m2::PointD m_position;
     string m_pivotRegion;
-    std::set<uint32_t> m_preferredTypes;
+    std::vector<uint32_t> m_preferredTypes;
     bool m_suggestsEnabled = false;
     bool m_needAddress = false;
     bool m_needHighlighting = false;
diff --git a/search/utils.cpp b/search/utils.cpp
index 817653f9a5..cca289d5f9 100644
--- a/search/utils.cpp
+++ b/search/utils.cpp
@@ -48,10 +48,10 @@ strings::LevenshteinDFA BuildLevenshteinDFA(strings::UniString const & s)
   return strings::LevenshteinDFA(s, 1 /* prefixSize */, kAllowedMisprints, GetMaxErrorsForToken(s));
 }
 
-set<uint32_t> GetCategoryTypes(string const & name, string const & locale,
-                               CategoriesHolder const & categories)
+vector<uint32_t> GetCategoryTypes(string const & name, string const & locale,
+                                  CategoriesHolder const & categories)
 {
-  set<uint32_t> types;
+  vector<uint32_t> types;
 
   int8_t const code = CategoriesHolder::MapLocaleToInteger(locale);
   Locales locales;
@@ -63,6 +63,8 @@ set<uint32_t> GetCategoryTypes(string const & name, string const & locale,
 
   FillCategories(QuerySliceOnRawStrings<vector<strings::UniString>>(tokens, {} /* prefix */),
                  locales, categories, types);
+
+  my::SortUnique(types);
   return types;
 }
 
@@ -88,7 +90,7 @@ MwmSet::MwmHandle FindWorld(DataSource const & dataSource)
   return FindWorld(dataSource, infos);
 }
 
-void ForEachOfTypesInRect(DataSource const & dataSource, set<uint32_t> const & types,
+void ForEachOfTypesInRect(DataSource const & dataSource, vector<uint32_t> const & types,
                           m2::RectD const & pivot, FeatureIndexCallback const & fn)
 {
   vector<shared_ptr<MwmInfo>> infos;
diff --git a/search/utils.hpp b/search/utils.hpp
index aa6c21f434..0942ade6fc 100644
--- a/search/utils.hpp
+++ b/search/utils.hpp
@@ -21,7 +21,6 @@
 #include <cstdint>
 #include <functional>
 #include <memory>
-#include <set>
 #include <vector>
 
 class DataSource;
@@ -88,7 +87,7 @@ void ForEachCategoryTypeFuzzy(StringSliceBase const & slice, Locales const & loc
 // and a space after it means that no errors were made.
 template <typename T>
 bool FillCategories(QuerySliceOnRawStrings<T> const & slice, Locales const & locales,
-                    CategoriesHolder const & catHolder, std::set<uint32_t> & types)
+                    CategoriesHolder const & catHolder, std::vector<uint32_t> & types)
 {
   types.clear();
   if (slice.HasPrefixToken())
@@ -112,16 +111,16 @@ bool FillCategories(QuerySliceOnRawStrings<T> const & slice, Locales const & loc
             return;
         }
 
-        types.insert(type);
+        types.push_back(type);
       });
 
   return !types.empty();
 }
 
-// Returns set of classificator types for category with |name| and |locale|. For metacategories
+// Returns classificator types for category with |name| and |locale|. For metacategories
 // like "Hotel" returns all subcategories types.
-std::set<uint32_t> GetCategoryTypes(std::string const & name, std::string const & locale,
-                                    CategoriesHolder const & categories);
+std::vector<uint32_t> GetCategoryTypes(std::string const & name, std::string const & locale,
+                                       CategoriesHolder const & categories);
 
 MwmSet::MwmHandle FindWorld(DataSource const & dataSource,
                             std::vector<std::shared_ptr<MwmInfo>> const & infos);
@@ -129,6 +128,6 @@ MwmSet::MwmHandle FindWorld(DataSource const & dataSource);
 
 using FeatureIndexCallback = std::function<void(FeatureID const &)>;
 // Applies |fn| to each feature index of type from |types| in |rect|.
-void ForEachOfTypesInRect(DataSource const & dataSource, std::set<uint32_t> const & types,
+void ForEachOfTypesInRect(DataSource const & dataSource, std::vector<uint32_t> const & types,
                           m2::RectD const & rect, FeatureIndexCallback const & fn);
 }  // namespace search