Perhaps you should try some spelling variations:
yuan gain » yuan lin
run gain » run pain
yuan kai » yuan kang, yuan fei, tan kai
kang hay » eang hay, kang han, kang tae
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 (run gain))) or (yuan kai)) yang wu ((kang hay) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yan ((((yuan gain) OR (run gain))) OR (yuan kai)) yang wu ((kang hay) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yan ((((yuan gain) OR (run gain))) or (yuan kai)) yang wu ((kang hay) or (dang hai)) ;*".