Perhaps you should try some spelling variations:
cross patients » from patients, class patient, doctors patients
cross patient » class patient, proms patient, access patient
among shui » among sri, tong shui
wang yang » wang yan, wang liang, wang yanling
yang jui » yang judy, yang di, yang xi
yang jun » pang jun, yang jin, yang judy

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 yang ((yang jui) OR (yang jun)) ((cross patients) OR (cross patient)) risk among shui ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang ((yang jui) or (yang jun)) ((cross patients) or (cross patient)) risk among shui ;*.