Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
voice communications » mobile communications, guinea communications, online communications
technologien aids » technologien als, technologien ad, technologien des
information meier » information matter, information medium, information model
aids information » chandos information, series information
4 development » 2 development, 4 developing
development 2 » development 1, development 2.1, development 2.3
meier und » eier und, meister und, tier und
und voice » one voice
costs 4 » costs _, costs a, costs 4.2
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information meier und voice communications costs 4 development 2 areas.*.