Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
informations context » information content, information contents, information control
4 communications » 14 communications, 4 communication, 2 communications
developing urban » development urban, developing human, developing areas
technologien am » technologien im, technologien als, technologie im
am informations » a informations, als informations, aux informations
a developing » a development
urban africa » urban area
context 3.1 » context 2.1, context 1, context 1.3
costs a » costs _, costs 4
3.1 4 » 3.1 _, 3.1 a, 3.1 k

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

• Adding a wildcard symbol may retrieve word variants: technologien am informations context 3.1 4 communications costs a developing urban africa.*.