Categoria
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'kategorie', 'terms' => '1', 'field' => 'term_id', 'include_children' => false, ), array( 'taxonomy' => 'karte', 'terms' => '2', 'field' => 'term_id', 'include_children' => false, ), );