Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
minh long » minh cong, vinh long
liu gang » liu gangs, liu yang, liu feng
long shu » cong shu, tong shui, long du
yang li » yang lin, yang di, yang xi
li gang » ii gang, i gang, li wang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yang li ((li gang) or (liu gang)) minh long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang li ((li gang) OR (liu gang)) minh long shu ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yang li ((li gang) or (liu gang)) minh long shu ;*.