Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
guan gain » run gain
dang hadi » dang hai
yong yan » yang yang, dong yang, ying yang
yan guan » gan guan, yan yuan, yang guang
kang hay » eang hay, kang han, dang hai
yang wu » yang du, yang jui, yang jun
yang mu » yang du, yang muxi, yang jui

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 yong yan guan gain ((yang wu) OR (yang mu)) ((kang hay) OR (dang hadi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong yan guan gain ((yang wu) or (yang mu)) ((kang hay) or (dang hadi)) ;*.