Perhaps you should try some spelling variations:
ping john » king john, kong john, wong john
john song » john wong, john bonn, john ngosong
dann bin » dong bin
hua chen » jui chen, a chen, hua ren
song yue » wong yue, song yun, hong yu
yu chen » yu cheng, yi chen, yulu chen
sin » sign, sind, skin

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: ((dann bin) OR (((dong di) OR (dong sin)))) ya ((hua chen) OR (yu chen)) ping john song yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dann bin) or (((dong di) OR (dong sin)))) ya ((hua chen) or (yu chen)) ping john song yue ;~".
• Adding a wildcard symbol may retrieve word variants: ((dann bin) or (((dong di) OR (dong sin)))) ya ((hua chen) or (yu chen)) ping john song yue ;*.