// WP_Term_Query arguments $args = array( 'taxonomy' => array( 'familia', 'marca' ), 'hierarchical' => true, 'childless' => true, 'fields' => 'id=>name', 'hide_empty' => false, ); // The Term Query $taxys = new WP_Term_Query( $args ); // The Loop if ( ! empty( $taxys ) && ! is_wp_error( $taxys ) ) { // do something } else { // no terms found }