Perhaps you should try some spelling variations:
wing yanling » wang yanling, wang yangming
cost patient » cross patient, courts patient, class patient
patient risk » patients risk, patient task, patient cost
risk gong » risk among, risk along, risk bond
tying up » taking up, tying _
gong hui » tong hui, tong shui, wang hui
yang » lang, wang

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 (yang di)) cost patient risk gong hui ;~.
• Adding a wildcard symbol may retrieve word variants: wing yanling ((tying up) or (yang di)) cost patient risk gong hui ;*.