Perhaps you should try some spelling variations:
among partners » paying partners, among parents, among learners
des patienten » der patienten, des prasidenten, und patienten
patienten 4.1 » patienten 4.6, patienten 6.2, patienten 2.3
among farmers » salmon farmers
yuan chang » yuan cheng, huang chang, han chang
lang yuan » fang yuan, wang yuhan, meng yuan
plan des » plan de, bilan des, plan du

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 yuan chang plan des patienten 4.1 ((among farmers) OR (among partners)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang yuan chang plan des patienten 4.1 ((among farmers) or (among partners)) ;*.