Perhaps you should try some spelling variations:
yang pong » ping pong, yan cong, yang jing
yang yang » wang yang, wang yan
ping jia » jing jia, jing ji, ying jin
wong yue » wang yue, hong yu
yu chen » yu cheng, yulu chen, jui chen
yi chen » jui chen
ping ke » ping ku, doing ke, jiang ke

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang pong) or (yang yang)) ((yu chen) or (yi chen)) ((ping ke) or (ping jia)) wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang pong) OR (yang yang)) ((yu chen) OR (yi chen)) ((ping ke) OR (ping jia)) wong yue ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yang pong) or (yang yang)) ((yu chen) or (yi chen)) ((ping ke) or (ping jia)) wong yue ;*.