Perhaps you should try some spelling variations:
yang liying » liang liying, wang liming, yang liang
liying hua » ying hua
wang yang » wang yan, wang liang, wang yanling
dang hari » dang hai
hua rent » hua ren
yan jiu » yang jie, yang jin, pang jiu
hong 7 » hong w, hong a, hong g

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 yang liying hua rent ((yan jiu) OR (yang di)) ((hong 7) OR (dang hari)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang liying hua rent ((yan jiu) or (yang di)) ((hong 7) or (dang hari)) ;*.