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
aids information » chandos information, series information
information case » information based, information can, information costs
developing human » development human, developing a, developing asia
3 developing » 3 development
5 voice » 5 voices, _ voice, a voice
costs 3 » costs _, costs 4, costs a
case 5 » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information case 5 voice communications costs 3 developing human assets.*.