Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing who » developing good, developing crop, developing home
3 developing » 3 development
who accessed » all accessed, who crossed
5 voice » 5 voices, _ voice, a voice
costs 3 » costs _, costs 4, costs a
3.2 5 » 3.2 _, 3.2 a, 3.2 k

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 3.2 5 voice communication costs 3 developing who accessed.*.