Perhaps you should try some spelling variations:
patients risk » patient risk, patients links, patients si
cost patients » cost patient, cleft patients, care patients
liang liying » jiang liping, liang lilin, liang ying
liang yang » liang ying, wang yang, yang yang
risk along » risk among, ask along
along shu » along nhue, cong shu, along who
can cost » can costa, can lost, can post

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((liang yang) or (liang liying)) can cost patients risk along shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang yang) OR (liang liying)) can cost patients risk along shu ;.
• Adding a wildcard symbol may retrieve word variants: wang ((liang yang) or (liang liying)) can cost patients risk along shu ;*.