Perhaps you should try some spelling variations:
cleft patients » select patients, les patients, benefit patients
wan yanling » wang yanling, wang yangming, wang danning
patients 1 » patients _
taking up » making up, waking up, shaking up
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
ying hua » ming hua, wang hua, ying zhu
1 ying » _ ying, 1 laying

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: wan yanling ((((taking up) OR (yang jin))) OR (yang jui)) cleft patients 1 ying hua ;~.
• Adding a wildcard symbol may retrieve word variants: wan yanling ((((taking up) or (yang jin))) or (yang jui)) cleft patients 1 ying hua ;*.