Perhaps you should try some spelling variations:
von sprach » von sprache, von sprachen
wang liang » wang yang
liang yan » liang dan, liang tan, liang ying
kong star » kong sar
yang jui » yang judy, yang xi, yang yi
yu chen » yu cheng, yi chen, yulu chen
yan yu » yun yu, yan yuan, yang yue

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 yan yu chen ((yang jui) OR (yang di)) ((von sprach) OR (kong star)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang yan yu chen ((yang jui) or (yang di)) ((von sprach) or (kong star)) ;*.