Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information century » information centers, information centre, information center
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
developing iv » developing av, developing ict, developing cil
4 developing » 3 developing
century 3.1 » century 1
iv africa » v africa, 1 africa, em africa
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien als information century 3.1 _ communications costs 4 developing iv africa.*.