Perhaps you should try some spelling variations:
wang yidan » wang yan
chang min » zhang ming, chang mae, chang ann
chan ming » kian ming, chan eng, chan fong
wang dan » wang yan, wang ban, wang yang
wang yue » wong yue, wang hua, wang yan
zi chen » zhi chen, li chen, z chen
yi chen » jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ping ((wang dan) OR (wang yidan)) ((zi chen) or (yi chen)) ((chang min) or (chan ming)) wang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ping ((wang dan) OR (wang yidan)) ((zi chen) OR (yi chen)) ((chang min) OR (chan ming)) wang yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ping ((wang dan) OR (wang yidan)) ((zi chen) or (yi chen)) ((chang min) or (chan ming)) wang yue ;*".