Perhaps you should try some spelling variations:
yang china » hang china, kong china, ming china
china wang » china yang, china chang, china zhang
dang hung » dang cuong, fung hung, ming hung
hung yang » huang yang, wang yang, yang yang
wong sau » wong sam, wong siu, wong shiu
yan sun » yan kun, yan guan, yan yuan
shin » skin, sein, thin

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: dang hung yang china wang yan sun ((wong sau) OR (song shin)) ;~.
• Adding a wildcard symbol may retrieve word variants: dang hung yang china wang yan sun ((wong sau) or (song shin)) ;*.