Perhaps you should try some spelling variations:
access patient » access patterns, access point, class patient
patient stays » patient study, patient als, patient meals
stays among » status among
among sex » among smes, among eu
tying up » taking up, tying _
pang jun » yang jui
wang » wing, wan, lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling ((tying up) OR (pang jun)) access patient stays among sex ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((tying up) or (pang jun)) access patient stays among sex ;*.