Perhaps you should try some spelling variations:
von sprachen » von sprache, von sprach, und sprachen
kong star » kong sar
yu cheng » _ cheng
yang jui » yang judy, yang xi, yang yi
yan tan » tan tan, yan clan, yan guan
yu chen » yi chen, yulu chen, jui chen
wang » wing, wan, lang

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