Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
dong skin » dong sin, dong bin, dof skin
rene yuan » meng yuan
yuan kang » yuan wang, yuan chang, chan kang
roa juan » rojas juan, mora juan, rios juan
gong hui » tong hui, tong shui, wang hui
ya juan » y juan, san juan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (dong skin)) ((ya juan) OR (roa juan)) rene yuan kang ((gong hui) or (wang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (dong skin)) ((ya juan) OR (roa juan)) rene yuan kang ((gong hui) OR (wang zhi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (dong skin)) ((ya juan) OR (roa juan)) rene yuan kang ((gong hui) or (wang zhi)) ;".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (dong skin)) ((ya juan) OR (roa juan)) rene yuan kang ((gong hui) or (wang zhi)) ;*.