Perhaps you should try some spelling variations:
yang july » yang judy, yang jui, yang jun
yan yang » yang yang, yao yang, dan yang
july ren » july lei
yang jin » yang jie, yang jun, ying jin
long shu » cong shu, tong shui
yan jiu » yang jie, pang jiu
long du » long d, long do, long run
wang » wing, wan, lang
sar » sara, star, saur

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 july ren ((yan jiu) OR (yang jin)) ((((long shu) OR (long du))) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang july ren ((yan jiu) or (yang jin)) ((((long shu) OR (long du))) or (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan yang july ren ((yan jiu) or (yang jin)) ((((long shu) OR (long du))) or (kong sar)) ;*.