Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
technologien system » technological system, technology system, technological systems
system information » systems information, system formation, systeme d'information
information centre » information centers, information contents
communication cost » communication costs, communication costa, communications costs
developing a » developing _
centre des » centre de, centrale des, centres de
des actors » des autors, des acteurs, des actions
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien system information centre des actors communication cost _ developing a africa.*.