There is solved:

$taxonomy_name = \'listing_category\';
$queried_object = get_queried_object();
$term_id = $queried_object->term_id;

$termchildren = get_terms( $taxonomy_name, array( \'parent\' => $term_id, \'hide_empty\' => false ) );

echo \'<ul>\';
   foreach ( $termchildren as $child ) {
       echo \'<li><a href="\' . get_term_link( $child, $taxonomy_name ) . \'">\' . $child->name . \'</a></li>\';
   }
echo \'</ul>\';