Perhaps you should try some spelling variations:
human gender » bhutan gender, human gene, german gender
clan human » than human
das clan » das bilan, das land, das cern
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
wong sau » wong sam, wong siu, wong shiu
wang » wan, lang

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wing) das clan human gender ((yang jie) OR (yang jui)) ((wong sau) OR (cong shu)) ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or wing) das clan human gender ((yang jie) or (yang jui)) ((wong sau) or (cong shu)) ;*.