Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
wang yong » wang yang, wang hyoung, wang yan
dang hari » dang hai
ka chuan » say chuan, hai chuan, ka chai
ren yang » ren yan, chen yang, dan yang
yang duc » yang du, sang duck, yang di
ka hua » ya hua

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: ((yang yang) OR (wang yong)) ((ka hua) OR (ka chuan)) ren yang duc dang hari ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yong)) ((ka hua) or (ka chuan)) ren yang duc dang hari ;*.