Perhaps you should try some spelling variations:
yulu cheng » yu cheng, yuan cheng
wang yong » wang yang, wang hyoung, wang yan
yulu chen » yu chen
chan fong » chew fong, chan kang, chan ming
yong yan » yang yang, dong yang, ying yang
chan eng » chan kang, chan ming, han en
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 ((yulu chen) OR (yulu cheng)) ((chan eng) OR (chan fong)) chung h ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yan ((yulu chen) or (yulu cheng)) ((chan eng) OR (chan fong)) chung h ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong yan ((yulu chen) or (yulu cheng)) ((chan eng) OR (chan fong)) chung h ;*.