Perhaps you should try some spelling variations:
yuan wang » yuan kang, yuan chang, qian wang
hong jong » hong kong
dan wang » dan yang, qian wang, dan dana
yan wang » yang yang, qian wang, yan liang
yang jin » yang jie, yang jun, ying jin
hong hai » shang hai, zhong tai, dang hai
yan jiu » yang jie, pang jiu

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: dan wang yan ((yuan wang) OR (yan wang)) ((yang jin) OR (yan jiu)) ((hong hai) OR (hong jong)) ;~.
• Adding a wildcard symbol may retrieve word variants: dan wang yan ((yuan wang) or (yan wang)) ((yang jin) or (yan jiu)) ((hong hai) or (hong jong)) ;*.