Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
15.3 developing » 1.3 developing, 10.3 developing, 5.3 developing
contents der » content der, contents je, contents key
developing a » developing _
costs 15.3 » costs 12.3, costs 14.3, costs 5.3
der oral » der moral, der ort, der orte
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien des information contents der oral communication costs 15.3 developing a africa.*.