Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
rong minh » gong min, jong min, song min
yan yang » yang yang, yao yang, dan yang
long shu » cong shu, tong shui
long du » long d, long do, long run
xi li » xi ai
li li » li lin, li l, li lu
wang » wing, wan, lang

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 yan yang ((xi li) OR (li li)) ((rong minh) OR (sang minh)) ((long shu) OR (long du)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang ((xi li) or (li li)) ((rong minh) or (sang minh)) ((long shu) OR (long du)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan yang ((xi li) or (li li)) ((rong minh) or (sang minh)) ((long shu) OR (long du)) ;*.