Perhaps you should try some spelling variations:
patient links » patients links, patient eine, patient life
cost patient » cross patient, courts patient, class patient
links among » linkages among
wang liang » wang yang
yang can » yang fan, yang dean, yang yang
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) OR (wang yan)) yang can cost patient links among health ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang liang) or (wang yan)) yang can cost patient links among health ;*.