Perhaps you should try some spelling variations:
class patient » cross patient, access patient, class latin
patient si » patients si, patient skin, patient mix
tong shui » tong hui, cong shu, gong hui
tying up » taking up, tying _
yang jie » yang jin, yang di, yang jui
si tong » hui tong, xin tong
wang » wing

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 OR lang) OR wan) yanling ((tying up) OR (yang jie)) class patient si tong shui ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang or lang) or wan) yanling ((tying up) or (yang jie)) class patient si tong shui ;*.