Perhaps you should try some spelling variations:
select patients » cleft patients, selecting patient, benefit patients
patients xin » patients en, patients can, patients si
wang yang » wang yan, wang liang, wang yanling
tong shui » tong hui, cong shu, gong hui
pang jun » yang jui
yang up » yang jui, tying up, yang jun

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 ((yang up) or (pang jun)) select patients xin tong shui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ((yang up) OR (pang jun)) select patients xin tong shui ;.
• Adding a wildcard symbol may retrieve word variants: wang yang ((yang up) or (pang jun)) select patients xin tong shui ;*.