Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
wang wang » wang yang, wang liang, wang yong
china tan » china top, china two, china taiwan
tan yong » tan hong, tan kong, tan yang
yong jui » yang jui, yang jun, yong cai
wong sau » wong siu, wong shiu, wong lai
wong sam » wong lai, kong sar, von sam

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