Perhaps you should try some spelling variations:
liang yanling » wang yanling, jiang yajing, liang ying
patients risk » patient risk, patients links, patients si
wang liang » wang yang
can losers » can lower
among who » along who, among hr, wrong who
can lose » can close, can lost, can't lose
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 losers))) OR (can cost)) patients risk among who ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yanling ((((can lose) OR (can losers))) or (can cost)) patients risk among who ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yanling ((((can lose) OR (can losers))) or (can cost)) patients risk among who ;*.