Perhaps you should try some spelling variations:
wang liang » wang yang
liang ying » liang liying, huang ying, zhang ying
dang hari » dang hai
ying hua » ming hua, wang hua, ying zhu
hua rent » hua ren
yan jiu » yang jie, yang jin, pang jiu
hong 7 » hong w, hong a, hong g
yang » 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 liang ying hua rent ((yan jiu) OR (yang di)) ((hong 7) OR (dang hari)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang ying hua rent ((yan jiu) or (yang di)) ((hong 7) or (dang hari)) ;*.