diff --git a/app/Http/Controllers/Frontend/PlasmidController.php b/app/Http/Controllers/Frontend/PlasmidController.php
index d9c272c258b773d2bcaee28409e20881fae9ca3a..83dffb93d1fef12300b469d79ce4955a17a9272e 100644
--- a/app/Http/Controllers/Frontend/PlasmidController.php
+++ b/app/Http/Controllers/Frontend/PlasmidController.php
@@ -30,7 +30,9 @@ class PlasmidController extends Controller
         if (request()->ajax()) {
             $query = Plasmid::query()->when(request()->searchBuilder, function ($query, $searchBuilderAjaxRequest) {
                     $criteria = $searchBuilderAjaxRequest['criteria'];
+                    \Log::debug($criteria);
                     $logic = $searchBuilderAjaxRequest['logic'];
+                    \Log::debug($logic);
                     $query = $this->buildRecursiveQuery($query, $criteria, $logic);
                 });
 
diff --git a/app/Traits/Frontend/SearchBuilder.php b/app/Traits/Frontend/SearchBuilder.php
index 1b0c9979fb3ac586cac8c19b7c7ebcf71d3ce6b2..4348075448a5cf9ded9736e85e85b6646f0f1fbc 100644
--- a/app/Traits/Frontend/SearchBuilder.php
+++ b/app/Traits/Frontend/SearchBuilder.php
@@ -13,9 +13,15 @@ trait SearchBuilder
                 // Recursive
                 $subCriteria = $item['criteria'];
                 $subLogic = $item['logic'];
-                $query->where(function ($query) use ($subCriteria, $subLogic) {
-                    $this->buildRecursiveQuery($query, $subCriteria,  $subLogic);
-                });
+                if ($logic == 'OR') {
+                    $query->orWhere(function ($query) use ($subCriteria, $subLogic) {
+                        $this->buildRecursiveQuery($query, $subCriteria,  $subLogic);
+                    });
+                } else {
+                    $query->where(function ($query) use ($subCriteria, $subLogic) {
+                        $this->buildRecursiveQuery($query, $subCriteria,  $subLogic);
+                    });
+                }
             } else {
                 // Apply criteria