Perhaps you should try some spelling variations:
wan hyoung » wang hyoung, man houng, min hyoung
hyoung yan » kyoung yang, hyoung gun, kyoung yun
tung chung » fung chung, kung chung, tang chun
yulu chen » yu chen
chan tung » chan eng, chan fong, chan kang
chung hui » chuang hui, chun hui, chung hee
yu cheng » yu chen, _ cheng

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan hyoung yan ((yulu chen) or (yu cheng)) chan tung chung hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan hyoung yan ((yulu chen) OR (yu cheng)) chan tung chung hui ;*.