Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
chan kang » chung kang, chan fong, chan ming
yong yan » yang yang, dong yang, ying yang
yu cheng » _ cheng
chan eng » chan fong, chan ming, han en
chan jan » chain jane, chan alan, chan lau
yu chen » yi chen, yulu chen, jui chen
chung h » chun h, chung _, chung hee

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 yan ((yu chen) OR (yu cheng)) ((chan eng) OR (((chan kang) OR (chan jan)))) chung h ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong yan ((yu chen) or (yu cheng)) ((chan eng) or (((chan kang) or (chan jan)))) chung h ;*.