Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
yang yang » wang yang, wang yan
wang vang » wang yang, trang vang, wang liang
wang ban » wang yan, wang dan, wang yang
tan yuan » yan yuan, fang yuan, tsao yuan
vang et » lang et, vang viet
et dang » et dans
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: ((yang yang) OR (wang ban)) tan yuan wang vang et dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang ban)) tan yuan wang vang et dang hai ;*.