Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
wang yuan » wang yuhan, wang yan, fang yuan
gang minh » kang minah, anh minh, gong min
sang minh » kang minah, anh minh, song min
long shu » cong shu, tong shui, long du
yuan li » yuan lin, guan li, yuan zi
li i » li li, li yi, liv i

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 wang yuan li i ((gang minh) OR (sang minh)) long shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang wang yuan li i ((gang minh) or (sang minh)) long shu ;*.