Perhaps you should try some spelling variations:
care patients » cancer patients, failure patients
patients si » patients _, patients 1, patients en
wang liang » wang yang
tong shui » tong hui, cong shu, gong hui
tying up » taking up, tying _
pang jun » yang jui
yang up » yang jui, yang jun, hang ups
si tong » hui tong, xin tong

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 up) OR (tying up))) or (pang jun)) care patients si tong shui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ((((yang up) OR (tying up))) OR (pang jun)) care patients si tong shui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ((((yang up) OR (tying up))) or (pang jun)) care patients si tong shui ;*".