Perhaps you should try some spelling variations:
oral communication » personal communication
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
information a » information age, information about
bank african » bank africa, pan african, baga african
des oral » des moral, des oil, des orts
a des » a der, a das

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien ad information a des oral communication costs _ development bank african.*.