Perhaps you should try some spelling variations:
patients risk » patient risk, patients links, patients si
patient care » inpatient care, outpatient care
among peers » among ers, among users, among letters
yang zhong » xiang zhong, tang zheng, wang hong
wang yang » wang yan, wang liang, wang yanling
zhong can » zhong tai
can lost » can cost, can lose, can post

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang zhong can lost ((patients risk) or (patient care)) among peers ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang zhong can lost ((patients risk) OR (patient care)) among peers ;*.