Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yulu chen » yu chen
chan tang » chan kang, chan eng, chan fong
china hui » china hubei, china how, china has
yong yan » yang yang, dong yang, ying yang
yu cheng » yu chen, _ cheng
chun hui » chuang hui, chun h, chun i

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yan ((yulu chen) or (yu cheng)) chan tang ((chun hui) OR (china hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yan ((yulu chen) OR (yu cheng)) chan tang ((chun hui) OR (china hui)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yan ((yulu chen) or (yu cheng)) chan tang ((chun hui) OR (china hui)) ;*".