Perhaps you should try some spelling variations:
liang yanling » wang yanling, jiang yajing, liang ying
patients risk » patients links, patients si, patients view
patient risk » patient task, patient cost, orient risk
wang liang » wang yang
among who » along who, among hr, wrong who
can lose » can close, can lost, can losers
can post » can cost, can lost, can past

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 liang yanling ((can lose) OR (can post)) ((patients risk) OR (patient risk)) among who ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yanling ((can lose) or (can post)) ((patients risk) OR (patient risk)) among who ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yanling ((can lose) or (can post)) ((patients risk) OR (patient risk)) among who ;*.