Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
cell communications » cell communication, health communications, rural communications
developing concepts » development concepts, development concept, developing countries
technologien dis » technologien des, technologien als, technologien im
information case » information based, information can, information costs
dis information » mis information, aids information, des informations
concepts access » contents access
a developing » a development
case 12 » case 1.2, case 1, case 2
12 cell » 1 cell, 2 cell, j2 cell
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information case 12 cell communications costs a developing concepts access.*.