Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
voice communications » mobile communications, guinea communications, online communications
information learned » information learning, information search, information letter
technologien fur » technologien des, technologien und, technologies 2
fur information » zur information, fair information, your information
4 developing » 3 developing
learned 3 » learned _, learned a, learned 5
3 voice » 3 voices, _ voice, a voice
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 fur information learned 3 voice communications costs 4 developing _ access.*.