Algol Plus Ltd

add_filter( "wpo_custom_product_search", function($do_custom_search,$query_args,$term) {
  //don't do custom search , just set filter 
  add_filter("posts_where", function($where,$query) {
    global $wpdb;
    $custom_conditions = array();
    foreach($query->query_vars['search_terms'] as $term) {
      $like  = "%" . $wpdb->esc_like( $term ) . "%";
      $custom_conditions[] = "CONCAT({$wpdb->posts}.post_title,{$wpdb->posts}.post_excerpt) LIKE '$like'";
    }
    $custom_where = join( " AND ", $custom_conditions);
    return $where. " OR " . $custom_where;
  }, 10, 2);
  return false;
}, 10, 3);