Perhaps you should try some spelling variations:
wang yidan » wang yan
kang minh » kang minah, sang minh, anh minh
minh long » minh cong, vinh long
yang jui » yang judy, yang di, yang yi
long shu » cong shu, tong shui, long du
yang xi » yang di, yang yi
wu kang » wu guang

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 xi) OR (yang jui)) wu kang minh long shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yidan ((yang xi) or (yang jui)) wu kang minh long shu ;*.