Perhaps you should try some spelling variations:
than china » tuan china, wuhan china, can china
wang kang » wang yang, wang liang, wang yan
han china » hang china, can china, dan china
dan yang » daun yang, tan yang, wang yang
yang duc » yang du, sang duck, yang di
dang » lang, dans, gang
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 kang) OR (wang yanling)) ((than china) OR (han china)) dan yang duc dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang kang) or (wang yanling)) ((than china) or (han china)) dan yang duc dang hai ;*.