Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
do communications » 10 communications, 14 communications, 2 communications
technologien am » technologien im, technologien als, technologie im
developing east » development east, developing a, developing asia
am information » guam information, palm information, crm information
3.3 developing » 4 developing, 2 developing, 1 developing
centers case » center case, century case, centers can
east africa » west africa
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
case do » case d, case d1, case d2

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 case do communications costs 3.3 developing east africa.*.