Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
chang min » zhang ming, chang mae, chan ming
wu chang » wu chung, woo chang, ii chang
wong siu » wong shiu, kong siu, wong sau
yang yi » yang di, yang xi, yang jui
yi wu » yi xu

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: wang yidan yang yi wu chang min ((wong siu) OR (cong shu)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yidan yang yi wu chang min ((wong siu) or (cong shu)) ;*.