Perhaps you should try some spelling variations:
wang yuan » wang yuhan, wang yan, fang yuan
yuan kai » yuan kang, yuan fei, tan kai
kai than » said than
than tan » tan tan, othman tan, than rain
tan yang » dan yang, tan ying, tan yong
yang jun » yang jui, pang jun, yang jin
hong hai » shang hai, zhong tai, dang hai
chang ha » chang mae

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 yuan kai than tan yang jun ((hong hai) OR (chang ha)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yuan kai than tan yang jun ((hong hai) or (chang ha)) ;*.