Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien als » technologien des, technologien fur, technologien und
information 11.3 » information 1.3, information 14.3, information 11.2
als information » als informations, aids information, laws information
4.3 developing » 3.3 developing, 1.3 developing, 7.3 developing
developing a » developing _
costs 4.3 » costs 4.2, costs 4.4, costs 2.3
a access » 2 access, 3 access, 4 access

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

• Adding a wildcard symbol may retrieve word variants: technologien als information 11.3 _ voice communication costs 4.3 developing a access.*.