Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yulu chen » yu chen
chan fong » chan eng, chan kang, chan ming
chew fong » chen rong
china hui » china hubei, china how, china has
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 fong) OR (chew fong)) china hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung yan ((yulu chen) or (jui chen)) ((chan fong) OR (chew fong)) china hui ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung yan ((yulu chen) or (jui chen)) ((chan fong) OR (chew fong)) china hui ;*.