Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
developing urban » development urban, developing human, developing areas
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
3 developing » 3 development
urban africa » urban area
costs 3 » costs _, costs 4, costs a
new de » new dei, new dc, new deal

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information _ new de communication costs 3 developing urban africa.*.