Perhaps you should try some spelling variations:
oral communication » personal communication
technologien ad » technologien am, technologien und, technologien als
development 3.1 » development 1
ad information » d information, nd information, od information
contents n » contents 1, contents _, contents i
3.1 access » 1.1 access, 3.2 access, 3.6 access
n oral » _ oral, 2 oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information contents n oral communication costs _ development 3.1 access.*.