Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
chang mae » chang ha, changes made
chan kang » chung kang, chan eng, chan fong
wong sau » wong sam, wong siu, wong shiu
yang yi » yang di, yang xi, yang jui
yi lu » yi wu, yi xu, li lu

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 lu ((kian ming) OR (((chang mae) OR (chan kang)))) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: wang yidan yang yi lu ((kian ming) or (((chang mae) or (chan kang)))) wong sau ;*.