Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
oral communication » personal communication
technologien nd » technologien und, technologien ad, technologie und
nd information » und information, d information, od information
4 developing » 3 developing
developing a » developing _
content 2.2 » context 2.2, content 3.2, content 2.3
2.2 oral » 2.1 oral, 2.2 rural, 2.2 viral
a access » 2 access, 3 access, 4 access
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 nd information content 2.2 oral communication costs 4 developing a access.*.