Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
guang min » chang min, tang min
gong min » jong min, song min, gong meng
chan eng » chan fong, chan kang, chan ming
wong sam » wong sau, wong lai, kong sar
di lu » li lu, yi 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 di lu ((((guang min) OR (gong min))) OR (chan eng)) ((wong sam) OR (cong shu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan yang di lu ((((guang min) OR (gong min))) or (chan eng)) ((wong sam) or (cong shu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yidan yang di lu ((((guang min) OR (gong min))) or (chan eng)) ((wong sam) or (cong shu)) ;*.