Perhaps you should try some spelling variations:
wang ning » wang jing, wang liang, wang yang
ning pong » ping pong
hua chen » yu chen, a chen, hua ren
jui chen » yi chen
ping guo » ping ceo, ping ku, ping yu
guo jing » guo ming, guo xin, cao jing
jing guo » xin guo

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ning pong ((hua chen) or (jui chen)) ping guo jing guo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ning pong ((hua chen) OR (jui chen)) ping guo jing guo ;.
• Adding a wildcard symbol may retrieve word variants: wang ning pong ((hua chen) or (jui chen)) ping guo jing guo ;*.