Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yulu chen » yu chen
chan kong » chan kang, tan kong, chan eng
chan fong » chew fong, chan eng, chan kang
china how » china hong
jui chen » yi chen
wang » wing, wan, lang

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 hyoung yan ((yulu chen) OR (jui chen)) ((chan kong) OR (chan fong)) china how ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung yan ((yulu chen) or (jui chen)) ((chan kong) OR (chan fong)) china how ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung yan ((yulu chen) or (jui chen)) ((chan kong) OR (chan fong)) china how ;*.