Perhaps you should try some spelling variations:
hyoung yan » hyoung gun, kyoung yun, young yun
kang chen » chang chen, jane chen, kang han
yuan kai » yuan kang, yuan fei, tan kai
kai yang » kai fang, yao yang, dan yang
yang xi » yang di, yang yi, yang jui
wang » wing, wan, lang
hai » hadi, haji, hari

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