tax_query
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'name1', 'terms' => array( '50', '100' ), 'field' => 'slug', 'operator' => 'EXISTS', 'include_children' => true, ), );
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'name1', 'terms' => array( '50', '100' ), 'field' => 'slug', 'operator' => 'EXISTS', 'include_children' => true, ), );