Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
chang min » zhang ming, chang mae, chang ann
chan ming » kian ming, chan eng, chan fong
wong sau » wong sam, wong siu, wong shiu
yang xu » yang xi, yang du, yang mu
xu liu » xu lu, x liu
von sa » von sam, von sap, von sl

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 yong yang xu liu ((chang min) OR (chan ming)) ((wong sau) OR (von sa)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong yang xu liu ((chang min) or (chan ming)) ((wong sau) or (von sa)) ;*.