Perhaps you should try some spelling variations:
wang yuan » wang yuhan, wang yan, fang yuan
yuan wang » yan wang, yuan kang, yuan chang
shang hai » shang kai, chang ha, hong hai
hong than » hong tan, long thanh, hong hai
wang run » wang jun, wang chun, wang xuan
run gain » run pain
yang lin » yang jin, wang lin, yang li
wang qin » wang lin, wang qiao, wang jing

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuan wang run gain ((yang lin) or (wang qin)) ((((shang hai) or (dang hai))) or (hong than)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan wang run gain ((yang lin) OR (wang qin)) ((((shang hai) OR (dang hai))) OR (hong than)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yuan wang run gain ((yang lin) or (wang qin)) ((((shang hai) or (dang hai))) or (hong than)) ;*.