Perhaps you should try some spelling variations:
china gender » china under, child gender, chiefs gender
tan china » tuan china, than china, can china
yang jui » yang judy, yang xi, yang yi
wong sam » wong lai, kong sar, von sam
wong sau » wong siu, wong shiu, wong lai
yan tan » tan tan, yan clan, yan guan
wang » wing, wan, lang

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan tan china gender ((yang jui) OR (yang di)) ((wong sam) OR (wong sau)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan tan china gender ((yang jui) OR (yang di)) ((wong sam) OR (wong sau)) ;*.