Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
technologien fair » technologien fur, technologies fail, technologien als
de communications » de communication, do communications, mce communications
fair information » fairs information, fur information, labor information
developing a » developing _
centers 3.1 » center 3.1, centers 3.3, centers 3.8
a africa » 1 africa, can africa, em africa
3.1 de » 3.1 die, 3.1 der, 3.1 def

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

• Adding a wildcard symbol may retrieve word variants: technologien fair information centers 3.1 de communications costs _ developing a africa.*.