Perhaps you should try some spelling variations:
bhutan gender » human gender, rhoton gender
wang wang » wang yang, wang liang, wang yong
pang kin » kang kim, pang jiu
pang jun » yang jui
yang jie » yang jin, yang di, yang jui
wong sau » wong sam, wong siu, wong shiu
yan » ryan
yang » ryang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang wang yan bhutan gender ((((pang kin) or (pang jun))) or (yang jie)) wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yan bhutan gender ((((pang kin) OR (pang jun))) OR (yang jie)) wong sau ;.
• Adding a wildcard symbol may retrieve word variants: wang wang yan bhutan gender ((((pang kin) or (pang jun))) or (yang jie)) wong sau ;*.