View difference between Paste ID: 33Vwtdav and fGnaF03y

 add_filter('relevanssi_modify_wp_query', 'mrb_tax_query');
 function mrb_tax_query($query) {
     $tax_query = array();
     if (!empty($query->query_vars['asset_class'])) {
         $tax_query[] = array(
             'taxonomy' => 'asset-class',
             'field' => 'slug',
             'terms' => $query->query_vars['asset_class'],
 			'operator' => 'IN'
         );
     }
     if (!empty($query->query_vars['region'])) {
         $tax_query[] = array(
             'taxonomy' => 'region',
             'field' => 'slug',
             'terms' => $query->query_vars['region'],
 			'operator' => 'IN'
         );
     }
     if (!empty($query->query_vars['economy'])) {
         $tax_query[] = array(
             'taxonomy' => 'economy',
             'field' => 'slug',
             'terms' => $query->query_vars['economy'],
 			'operator' => 'IN'
         );
     }
     if (!empty($query->query_vars['report_type'])) {
         $tax_query[] = array(
             'taxonomy' => 'report-type',
             'field' => 'slug',
             'terms' => $query->query_vars['report_type'],
 			'operator' => 'IN'
         );
     }
 
     if (!empty($tax_query)) {
         $tax_query['relation'] = 'AND'; // you can also use 'OR' here
         $query->set('tax_query', $tax_query);
 		$query->set('orderby', 'date');
         $query->set('order', 'DESC');
     }
     return $query;
 
 }