Perhaps you should try some spelling variations:
care patient » care patients, safe patient, cancer patient
patient pca » patient a, patient co, patient care
among neue » among eu, among new
pca among » era among
tying up » taking up, tying _
yang yi » yang di, yang xi, yang jui
wang » wing, wan, lang
judy » july

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 (((yang yi) OR (yang judy)))) care patient pca among neue ;~.
• Adding a wildcard symbol may retrieve word variants: wang yanling ((tying up) or (((yang yi) or (yang judy)))) care patient pca among neue ;*.