Perhaps you should try some spelling variations:
quang hong » quang cuong, wang hong, zhang hong
hua irene » hua ren
yang hong » wang hong, yang hongli, zhang hong
lang yan » wang yan, wang yang, zhang yan
yan ming » yuan ming, wan ming, kian ming
ming hua » ying hua, ming hung, wang hua
wong sam » wong sau, wong lai, von sam
kong » long, pong, ong

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: lang yan ming hua irene ((yang hong) OR (quang hong)) ((kong sar) OR (wong sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ming hua irene ((yang hong) OR (quang hong)) ((kong sar) or (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan ming hua irene ((yang hong) OR (quang hong)) ((kong sar) or (wong sam)) ;*.