Perhaps you should try some spelling variations:
patients 10.1 » patients 10.12, patients 10.5, patients 10.6
among letters » among lecturers, among learners, among masters
des patients » des patents, les patients, des patienten
salmon farms » salmon farmers
yuan zhang » yan zhang, yuan chang, xuan thang
zhang fang » zhang fan, zhang zhang, zhang yan
meng yuan » meng hsuan, fang yuan, feng juan
fang des » gang des, umfang des, anfang des

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: meng yuan zhang fang des patients 10.1 ((among letters) OR (salmon farms)) ;~.
• Adding a wildcard symbol may retrieve word variants: meng yuan zhang fang des patients 10.1 ((among letters) or (salmon farms)) ;*.