Perhaps you should try some spelling variations:
selecting patient » selecting talent, selecting treatment, predicting patient
patient risk » patients risk, patient task, patient cost
wang yang » wang yan, wang yanling
risk cong » risk coping, risk among, risk along
yang jui » yang judy, yang di, yang xi
yang up » tying up, yang jun, hang ups

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yang) OR (wang liang)) ((yang up) or (yang jui)) selecting patient risk cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang liang)) ((yang up) OR (yang jui)) selecting patient risk cong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) OR (wang liang)) ((yang up) or (yang jui)) selecting patient risk cong shu ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) OR (wang liang)) ((yang up) or (yang jui)) selecting patient risk cong shu ;*.