Perhaps you should try some spelling variations:
lose patients » les patients, obese patients, care patients
patients risk » patient risk, patients links, patients si
among users » among ers, among peers, among masters
liang yang » liang ying, yang yang, huang yang
wang yang » wang yan, wang liang, wang yanling
dean lose » can lose

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 yang) or (wang yang)) dean lose patients risk among users ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang yang) OR (wang yang)) dean lose patients risk among users ;*.