Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
development center » development case
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
center assessed » contexts assessed
4 development » 2 development, 4 developing
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 als information 5 _ voice communication costs 4 development center assessed.*.