Perhaps you should try some spelling variations:
patienten 3.5 » patienten 6.2, patienten 2.3, patienten 2.4
des patienten » der patienten, des prasidenten, und patienten
among actors » among doctors, among acholi
among donors » among doctors
yan yang » yang yang, yao yang, tan yang
dan yang » daun yang, tan yang, wang yang
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 ((yan yang) OR (dan yang)) plan des patienten 3.5 ((among actors) OR (among donors)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((yan yang) or (dan yang)) plan des patienten 3.5 ((among actors) OR (among donors)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((yan yang) or (dan yang)) plan des patienten 3.5 ((among actors) OR (among donors)) ;*.