Perhaps you should try some spelling variations:
among partners » paying partners, among farmers, among parents
patients 10.6 » patients 10.1, patients 10.5, patients 11.6
du patients » de patients, do patients, des patients
10.6 among » 1.5 among, 1.8 among
yan yang » yang yang, yao yang, tan yang
dan yang » daun yang, tan yang, wang yang
plan du » plan de, plan fur

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: lang ((yan yang) OR (dan yang)) plan du patients 10.6 among partners ;~.
• Adding a wildcard symbol may retrieve word variants: lang ((yan yang) or (dan yang)) plan du patients 10.6 among partners ;*.