Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien des » technologien fur, technologien und, technologies 2
information 11.3 » information 1.3, information 14.3, information 11.2
des information » des informations, does information, dis information
4 developing » 3 developing
developing a » developing _
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 des information 11.3 _ voice communication costs 4 developing a access.*.