Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yan yuan » yan guan, fang yuan, nan yan
tan yong » tan hong, tan kong, tan ying
tan yang » dan yang, tan ying, tao yang
yang han » yang fan, kang han, yang dean
yi yang » yin yang, yi gang, yu yang
wang » wan, lang

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

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