Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologien aids » technologien als, technologien ad, technologien des
do communications » 10 communications, 14 communications, 2 communications
aids information » chandos information, series information
developing can » developing a, developing ai, developing av
12 developing » 1.2 developing, 2 developing, 1 developing
can africa » urban africa
costs 12 » costs 1, costs 12.3, costs 12.4
1 do » _ do
contents » context

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information contents 1 do communications costs 12 developing can africa.*.