Perhaps you should try some spelling variations:
ratings risk » patients risk
lost ratings » load ratings, lost earnings, bond ratings
among east » among breast, among ers, among health
wan yang » wang yang, dan yang, yang yang
tan yang » dan yang, tan ying, tan yong
can lost » can cost, can lose, can post
jin can » tin can, jin chang, jin kang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan yang) OR (tan yang)) jin can lost ratings risk among east ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yang) OR (tan yang)) jin can lost ratings risk among east ;*".