Perhaps you should try some spelling variations:
care patients » cancer patients, failure patients
patients risk » patient risk, patients links, patients si
wing yanling » wang yanling, wang yangming
taking up » making up, waking up, shaking up
risk gong » risk among, risk along, risk bond
tying up » tying _
yang jui » yang judy, yang di, yang xi
gong hui » tong hui, tong shui, wang hui

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: wing yanling ((((tying up) OR (taking up))) OR (yang jui)) care patients risk gong hui ;~.
• Adding a wildcard symbol may retrieve word variants: wing yanling ((((tying up) or (taking up))) or (yang jui)) care patients risk gong hui ;*.