Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologien aids » technologien als, technologien ad, technologien des
de communications » de communication, do communications, mce communications
aids information » chandos information, series information
12.3 developing » 1.3 developing, 12.4 developing, 2.3 developing
developing can » developing a, developing ai, developing av
costs 12.3 » costs 2.3, costs 12.4, costs 14.3
can africa » urban africa
1 de » 1 die, 1 der, _ de
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 de communications costs 12.3 developing can africa.*.