Perhaps you should try some spelling variations:
ping john » king john, kong john, wong john
chen ping » chen rong, chen yang, chen wang
john song » john wong, john bonn, john ngosong
dong bin » dong sin, dann bin
hua chen » jui chen, yu chen, a chen
song yue » wong yue, song yun, hong yu
dong di » dong sin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong bin) or (dong di)) ya hua chen ping john song yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong bin) OR (dong di)) ya hua chen ping john song yue ;*.