Perhaps you should try some spelling variations:
ratings risk » patients risk
among east » among breast, among ers, among health
yan yang » yang yang, yao yang, dan yang
can lost » can post, can boost, can close
can lose » can close, can losers, can't lose
can cost » can costa, can post, chain cost
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 yan yang ((((can lost) OR (can lose))) OR (can cost)) ratings risk among east ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang ((((can lost) OR (can lose))) or (can cost)) ratings risk among east ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan yang ((((can lost) OR (can lose))) or (can cost)) ratings risk among east ;*.