Perhaps you should try some spelling variations:
yang ying » yang yang, yang jing, huang ying
wei yang » pei yang, wei wang, wei yang's
ying yu » ming yu, ping yu, ying zhu
yu chen » yu cheng, yi chen, yulu chen
yang yi » yang xi, yang jui
von sam » von sa, von sap, von scham
sin » sign, sind, skin

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wei yang ying yu chen ((yang di) OR (yang yi)) ((((von sam) OR (wong lai))) OR (dong sin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wei yang ying yu chen ((yang di) or (yang yi)) ((((von sam) or (wong lai))) or (dong sin)) ;*.