Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
sang minh » kang minah, anh minh, song ming
song min » song ming, gong min, jong min
wong siu » wong shiu, kong siu, wong sau
yang xi » yang di, yang yi, yang jui
xi wu » yi wu, li wu, xi bu

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan yang xi wu ((sang minh) OR (song min)) wong siu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yidan yang xi wu ((sang minh) OR (song min)) wong siu ;*.