Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
kang chen » chang chen, jane chen, kang han
dang hadi » dang hai
yuan dan » yuan kang, yuan wang, yuan lin
yuan kai » yuan kang, yuan fei, tan kai
yang jui » yang judy, yang di, yang xi
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 ((yuan dan) OR (yuan kai)) yang jui ((kang chen) OR (dang hadi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung yan ((yuan dan) OR (yuan kai)) yang jui ((kang chen) or (dang hadi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung yan ((yuan dan) OR (yuan kai)) yang jui ((kang chen) or (dang hadi)) ;*.