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

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 cost)) patient risk among who ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang yanling ((can lose) or (can cost)) patient risk among who ;*.