Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
4 developing » 3 developing
developing 3 » developing _, developing a, developing e
3 access » 2 access
costs n » costs _, costs a, costs 5
costs 4 » costs _, costs a, costs 4.2
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 costs n oral communication costs 4 developing 3 access.*.