Perhaps you should try some spelling variations:
patients risk » patient risk, patients links, patients si
wang liang » wang yang
among east » among breast, among ers, among health
liang yin » liang ying, jiang yi, liang dan
hang lost » have lost, has lost, can lost
yin hang » yin fang, yin yang, ying chang

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 yin hang lost ((ratings risk) OR (patients risk)) among east ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yin hang lost ((ratings risk) OR (patients risk)) among east ;*".