Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
information 2 » information 3
developing a » developing _
die voice » cine voice, one voice
costs 2.3 » costs 4.2, costs 4.4
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien als information 2 die voice communication costs 2.3 developing a areas.*.