Perhaps you should try some spelling variations:
courts patient » alerts patient, cost patient
patient risk » patients risk, patient task, patient cost
among peers » among ers, among users, among letters
among sex » among smes, among eu
yang up » yang jui, tying up, yang jun
yang xi » yang di, yang yi, yang jui
wang » wing, wan, 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 yanling ((yang up) OR (yang xi)) courts patient risk ((among peers) OR (among sex)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((yang up) or (yang xi)) courts patient risk ((among peers) or (among sex)) ;*.