diff --git a/searchcore/src/tests/proton/matching/match_phase_limiter/match_phase_limiter_test.cpp b/searchcore/src/tests/proton/matching/match_phase_limiter/match_phase_limiter_test.cpp
index 30ab34374eb7..a7c1b8ebecae 100644
--- a/searchcore/src/tests/proton/matching/match_phase_limiter/match_phase_limiter_test.cpp
+++ b/searchcore/src/tests/proton/matching/match_phase_limiter/match_phase_limiter_test.cpp
@@ -17,6 +17,7 @@
 #include <vespa/vespalib/data/slime/slime.h>
 #include <vespa/vespalib/util/stringfmt.h>
 #include <vespa/vespalib/testkit/test_kit.h>
+#include <utility>
 #include <vespa/vespalib/testkit/test_master.hpp>
 
 using namespace proton::matching;
@@ -52,13 +53,13 @@ struct MockSearch : SearchIterator {
     bool postings_fetched;
     uint32_t last_seek = beginId();
     uint32_t last_unpack = beginId();
-    explicit MockSearch(const vespalib::string &term_in)
-        : spec("", 0, 0), term(term_in), _strict(vespalib::Trinary::True), tfmda(), postings_fetched(false) {}
-    MockSearch(const FieldSpec &spec_in, const vespalib::string &term_in, bool strict_in,
-               const TermFieldMatchDataArray &tfmda_in, bool postings_fetched_in)
-        : spec(spec_in), term(term_in),
+    explicit MockSearch(vespalib::string term_in)
+        : spec("", 0, 0), term(std::move(term_in)), _strict(vespalib::Trinary::True), tfmda(), postings_fetched(false) {}
+    MockSearch(const FieldSpec &spec_in, vespalib::string term_in, bool strict_in,
+               TermFieldMatchDataArray tfmda_in, bool postings_fetched_in)
+        : spec(spec_in), term(std::move(term_in)),
           _strict(strict_in ? vespalib::Trinary::True : vespalib::Trinary::False),
-          tfmda(tfmda_in),
+          tfmda(std::move(tfmda_in)),
           postings_fetched(postings_fetched_in) {}
     void doSeek(uint32_t docid) override { last_seek = docid; setDocId(docid); }
     void doUnpack(uint32_t docid) override { last_unpack = docid; }
@@ -71,8 +72,8 @@ struct MockBlueprint : SimpleLeafBlueprint {
     vespalib::string term;
     bool postings_fetched = false;
     bool postings_strict = false;
-    MockBlueprint(const FieldSpec &spec_in, const vespalib::string &term_in)
-        : SimpleLeafBlueprint(spec_in), spec(spec_in), term(term_in)
+    MockBlueprint(const FieldSpec &spec_in, vespalib::string term_in)
+        : SimpleLeafBlueprint(spec_in), spec(spec_in), term(std::move(term_in))
     {
         setEstimate(HitEstimate(756, false));
     }    
diff --git a/searchlib/src/vespa/searchlib/queryeval/andnotsearch.cpp b/searchlib/src/vespa/searchlib/queryeval/andnotsearch.cpp
index 1428212e5f9e..1a674e35aec1 100644
--- a/searchlib/src/vespa/searchlib/queryeval/andnotsearch.cpp
+++ b/searchlib/src/vespa/searchlib/queryeval/andnotsearch.cpp
@@ -51,9 +51,7 @@ class AndNotSearchStrict : public AndNotSearchStrictBase
      *
      * @param children the search objects we are andnot'ing
      **/
-    AndNotSearchStrict(Children children) : AndNotSearchStrictBase(std::move(children))
-    {
-    }
+    explicit AndNotSearchStrict(Children children) : AndNotSearchStrictBase(std::move(children)) { }
 
     void initRange(uint32_t beginid, uint32_t endid) override {
         AndNotSearch::initRange(beginid, endid);
diff --git a/searchlib/src/vespa/searchlib/queryeval/andnotsearch.h b/searchlib/src/vespa/searchlib/queryeval/andnotsearch.h
index ac1eeb63578c..51072bebd156 100644
--- a/searchlib/src/vespa/searchlib/queryeval/andnotsearch.h
+++ b/searchlib/src/vespa/searchlib/queryeval/andnotsearch.h
@@ -24,7 +24,7 @@ class AndNotSearch : public MultiSearch
      *
      * @param children the search objects we are andnot'ing
      **/
-    AndNotSearch(MultiSearch::Children children) : MultiSearch(std::move(children)) { }
+    explicit AndNotSearch(MultiSearch::Children children) : MultiSearch(std::move(children)) { }
 
 public:
     static std::unique_ptr<SearchIterator> create(ChildrenIterators children, bool strict);
@@ -42,7 +42,7 @@ class AndNotSearch : public MultiSearch
 class AndNotSearchStrictBase : public AndNotSearch
 {
 protected:
-    AndNotSearchStrictBase(Children children) : AndNotSearch(std::move(children)) { }
+    explicit AndNotSearchStrictBase(Children children) : AndNotSearch(std::move(children)) { }
 private:
     Trinary is_strict() const override { return Trinary::True; }
     UP andWith(UP filter, uint32_t estimate) override;
diff --git a/searchlib/src/vespa/searchlib/queryeval/termwise_search.cpp b/searchlib/src/vespa/searchlib/queryeval/termwise_search.cpp
index 3cffe25d8ad7..a278f2f8260d 100644
--- a/searchlib/src/vespa/searchlib/queryeval/termwise_search.cpp
+++ b/searchlib/src/vespa/searchlib/queryeval/termwise_search.cpp
@@ -57,9 +57,9 @@ SearchIterator::UP
 make_termwise(SearchIterator::UP search, bool strict)
 {
     if (strict) {
-        return SearchIterator::UP(new TermwiseSearch<true>(std::move(search)));
+        return std::make_unique<TermwiseSearch<true>>(std::move(search));
     } else {
-        return SearchIterator::UP(new TermwiseSearch<false>(std::move(search)));        
+        return std::make_unique<TermwiseSearch<false>>(std::move(search));
     }
 }