Perhaps you should try some spelling variations:
chang min » zhang ming, chang mae, chan ming
wang tan » wang yan, wang ban, wang dan
tan yang » dan yang, tan ying, tan yong
tang min » sang minh, yang mind, tang li
wong siu » wong shiu, kong siu, wong siew
wong sau » wong sam, wong shiu, wong lai
yang xi » yang di, yang yi, yang jui
xi wu » yi wu, li wu, xi bu

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 tan yang xi wu ((tang min) OR (chang min)) ((wong siu) OR (wong sau)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang tan yang xi wu ((tang min) OR (chang min)) ((wong siu) or (wong sau)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang tan yang xi wu ((tang min) OR (chang min)) ((wong siu) or (wong sau)) ;*.