diff --git a/includes/custom-field-associats-filter.php b/includes/custom-field-associats-filter.php
index ebc7520..5a95d03 100644
--- a/includes/custom-field-associats-filter.php
+++ b/includes/custom-field-associats-filter.php
@@ -38,8 +38,8 @@ if ( ! function_exists( 'my_pre_get_posts_associats' ) ){
     // bail early if not main query or plugin $the_query_associat
     // - allows custom code / plugins to continue working
     if( !$query->is_main_query() ) return;
-
-
+    $query->set( 'posts_per_page', -1);
+    //$query->set( 'relation', 'AND');
 
     // loop over filters
     foreach( $GLOBALS['my_query_filters_associat'] as $key => $fieldname)
@@ -48,36 +48,31 @@ if ( ! function_exists( 'my_pre_get_posts_associats' ) ){
       if( empty($_GET[ $fieldname ]) ) { continue; }
 
       // get original meta query
-      $meta_query = [];
+      $meta_query = []; //avoids infinite nesting
       $meta_query[] = $query->get('meta_query');
-      $meta_query[] = array('relation'  => 'OR');
 
       // get the values for this filter
       // eg: http://domain.tdl/associat/?xxp_associat_target=autonoma,entitat-publica
       $filtervalues= explode(',', $_GET[ $fieldname ]);
 
-      // loop retreived values from checkboxes and filter them with REGEXP
-      // http://domain.tdl/associat/?xxp_associat_target=autonoma&xxp_associat_field=circi
-      // http://domain.tdl/associat/?xxp_associat_target=autonoma,entitat-publica&xxp_associat_field=dansa
+      // loop retreived values from checkboxes and filter them 
       foreach( $filtervalues as $filteredvalue )
       {
-        // they are array based fields
-        // https://barn2.com/blog/querying-posts-by-custom-field-acf/#array-based-fields
-        $strippedvalue = sprintf( '^%1$s$|s:%2$u:"%1$s";', $filteredvalue, strlen( $filteredvalue ) );
-
-        // add our meta query to the original meta queries
+        
+      // add our meta query to the original meta queries
+        $meta_query['relation'] = 'OR';
         $meta_query[] = array(
-            array(
-                'key'     =>  $fieldname,
-                'value'   =>  $strippedvalue,
-                'compare' =>  'REGEXP',
-            ),
+          'key'      =>  $fieldname,
+          'value'    => $filteredvalue,
+          'compare'  =>  'LIKE'
         );
       }
-    // update the meta query arguments
-    $query->set('meta_query', $meta_query);
+      // update the meta query arguments
+      $query->set('meta_query', $meta_query);
+      //$query->set('relation', 'AND');
     }
-
+    //echo '<pre>' . var_export($query, true) . '</pre>';
+    //echo '<pre>' . print_r($query,true) . '</pre>';
     //always return
     return;
   }