Perhaps you should try some spelling variations:
yau yung » au yong, yap yun
yan yuan » yan guan, fang yuan, nan yan
dan yang » daun yang, tan yang, wang yang
kang han » kang chen, kong hang, zhang han
yan kun » yan guan
yang yi » yang di, yang xi, yang jui
yi kang » xi kang, yi gang, yi yang
wang » wing, wan

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 lang) hyoung ((((yan kun) or (yau yung))) or (yan yuan)) dan yang yi kang han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) hyoung ((((yan kun) OR (yau yung))) OR (yan yuan)) dan yang yi kang han ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang OR lang) hyoung ((((yan kun) or (yau yung))) or (yan yuan)) dan yang yi kang han ;*".