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
3.5 among » 1.5 among, 2.15 among, 1.8 among
yan yang » yang yang, yao yang, yan wang
dan yang » daun yang, wang yang, yang yang
tan yang » tan ying, tan yong, tao 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) OR (tan yang)))) plan des patienten 3.5 among actors ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((yan yang) or (((dan yang) OR (tan yang)))) plan des patienten 3.5 among actors ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((yan yang) or (((dan yang) OR (tan yang)))) plan des patienten 3.5 among actors ;*.