Perhaps you should try some spelling variations:
wang kyoung » hwang byoung, wang yong, kang young
kang chen » chang chen, jane chen, kang han
dang hadi » dang hai
yun yuan » yan yuan, sun yan, xu yuan
yuan dan » yuan kang, yuan wang, yuan kai
dan yang » daun yang, tan yang, wang yang
yang jui » yang judy, yang di, yang xi

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 kyoung) OR (wang hyoung)) yun yuan dan yang jui ((kang chen) OR (dang hadi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang kyoung) OR (wang hyoung)) yun yuan dan yang jui ((kang chen) or (dang hadi)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang kyoung) OR (wang hyoung)) yun yuan dan yang jui ((kang chen) or (dang hadi)) ;*.