Perhaps you should try some spelling variations:
yuan gain » run gain, yuan lin
yuan kai » yuan kang, yuan fei, tan kai
kang hay » kang han, kang tae, kang ca
eang hay » kang han
yan yan » yan yuan, nan yan, yang yang
yang wu » yang du, yang mu, yang jui
wang » wing, wan, lang
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yan ((yuan gain) or (yuan kai)) yang wu ((((kang hay) OR (eang hay))) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yan ((yuan gain) OR (yuan kai)) yang wu ((((kang hay) OR (eang hay))) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yan ((yuan gain) or (yuan kai)) yang wu ((((kang hay) OR (eang hay))) or (dang hai)) ;*".