Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
information centers » information contents, information officers
1 developing » 3 developing, 4 developing, 2 developing
developing a » developing _
centers new » century new, centers money, centuries new
a africa » 1 africa, can africa, em africa
costs 1 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologien _ information centers new actors communication costs 1 developing a africa.*.