Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
cell communications » cell communication, health communications, rural communications
developing urban » development urban, developing human, developing areas
technologien am » technologien im, technologien als, technologie im
am information » guam information, palm information, crm information
1 developing » 3 developing, 4 developing, 2 developing
urban africa » urban area
centers 2 » centers 21, centers _, center 2
costs 1 » costs _, costs 4, costs a
2 cell » 2 cells, j2 cell, _ cell

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

• Adding a wildcard symbol may retrieve word variants: technologien am information centers 2 cell communications costs 1 developing urban africa.*.