Perhaps you should try some spelling variations:
patients risk » patient risk, patients links, patients si
post patients » cost patient, post payments, des patients
liang yang » liang ying, yang yang, huang yang
wang yang » wang yan, wang liang, wang yanling
among who » along who, among hr, wrong who
can post » can cost, can lost, can past

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