Perhaps you should try some spelling variations:
oral communication » personal communication
development banks » development bank
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
4 development » 2 development, 4 developing
banks africa » bank's africa, bank africa, bank african
non oral » non oil, non arab
4.2 non » 3.2 non, 2.2 non
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 4.2 non oral communication costs 4 development banks africa.*.