Perhaps you should try some spelling variations:
patients risk » patient risk, patients links, patients si
savings rate » savings rates
hong wang » hong gang, hong kong, hong jong
yanling 8 » laning 8
among sri » among sex, among di, among ers
among eu » among men, among _, among 15
cost » costs

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

• Performing a fuzzy search may retrieve terms with similar spellings: hong wang yanling 8 cost ((savings rate) or (patients risk)) ((among eu) or (among sri)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hong wang yanling 8 cost ((savings rate) OR (patients risk)) ((among eu) OR (among sri)) ;.
• Adding a wildcard symbol may retrieve word variants: hong wang yanling 8 cost ((savings rate) or (patients risk)) ((among eu) or (among sri)) ;*.