Perhaps you should try some spelling variations:
wang liang » wang yang
liang ying » liang liying, huang ying, zhang ying
ying yun » yang yun, ying yang, young yun
yun chen » yung chen, yu chen, yuan cheng
von sach » von sprach, von sa, von sam
von fach » ein fach
yang xi » yang yi, yang jui
sar » sara, star, saur

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: wang liang ying yun chen ((yang xi) OR (yang di)) ((((von sach) OR (von fach))) OR (kong sar)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang ying yun chen ((yang xi) or (yang di)) ((((von sach) or (von fach))) or (kong sar)) ;*.