Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
kang chen » chang chen, jane chen, kang han
das clan » das bilan, das land, das cern
juan fan » juan rana, juan a, juan f
fan ying » fan xing, ran ying, tan ying
ying jin » yang jin, jing ji, yang jie
jin kang » jin chang, jin kyung, jing fang

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan ((yang yang) or (das clan)) juan fan ying jin kang chen ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan ((yang yang) OR (das clan)) juan fan ying jin kang chen ;*.