matkonim_entity_byid
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'entity', 'terms' => array( '15', '12' ), 'field' => 'term_id', ), );
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'entity', 'terms' => array( '15', '12' ), 'field' => 'term_id', ), );