Perhaps you should try some spelling variations:
hong jong » hong kong
yuan wang » yan wang, yuan kang, yuan chang
tan yang » dan yang, tan ying, tan yong
yang wan » yang fan, yang dean, yang yang
wan yuan » yan yuan, wang yuhan, fang yuan
hong hai » shang hai, zhong tai, dang hai
yan jin » yang jin, yan jiu, yang jing

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tan yang wan yuan wang yan jin ((hong hai) or (hong jong)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tan yang wan yuan wang yan jin ((hong hai) OR (hong jong)) ;.
• Adding a wildcard symbol may retrieve word variants: tan yang wan yuan wang yan jin ((hong hai) or (hong jong)) ;*.