Perhaps you should try some spelling variations:
patients risk » patient risk, patients links, patients si
wang liang » wang yang
liang ying » liang liying, huang ying, zhang ying
among east » among breast, among ers, among health
ying can » ying chang, ying bank, ying yang
can lost » can cost, can lose, 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 ying can lost ((ratings risk) OR (patients risk)) among east ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ying can lost ((ratings risk) OR (patients risk)) among east ;*".