Perhaps you should try some spelling variations:
juan rene » juan meng, juan rana
das cern » das ferne, das clan
yan yuan » yan guan, fang yuan, nan yan
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
wong sam » wong sau, wong lai, kong sar
wang » wing, wan

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 OR lang) ((das cern) OR (yan yuan)) juan rene ((yang jin) OR (yang jui)) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or lang) ((das cern) or (yan yuan)) juan rene ((yang jin) or (yang jui)) wong sam ;*.