Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications costs » communication costs, communications _
information 2.2.2 » information 12.2.2, information 2.3.2, information 3.2.2
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
3 developing » 3 development
developing 4 » developing _, developing a, developing e
4 access » 2 access, 3 access
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information 2.2.2 _ voice communications costs 3 developing 4 access.*.