Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yang yang » wang yang, wang yan
yan yuan » yan guan, fang yuan, nan yan
yuan tan » huan t'an, yuan kang, yuan ting
tan yong » tan hong, tan kong, tan yang
yang fan » zhang fan, yang dean, yang jin
yong yi » yang yi, wong yi, yong kim

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

• Performing a fuzzy search may retrieve terms with similar spellings: (lang or wing) hyoung yan yuan tan yong yi ((yang fan) OR (yang yang)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (lang OR wing) hyoung yan yuan tan yong yi ((yang fan) OR (yang yang)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(lang or wing) hyoung yan yuan tan yong yi ((yang fan) OR (yang yang)) ;*".