Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
developing cities » developing countries, developing annuities, developing economies
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
cities africa » societies africa, parties africa, rates africa
4 developing » 3 developing
3 mobile » _ mobile, a mobile, 2 mobile
cost 4 » cost _, cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologien des information context 3 mobile communication cost 4 developing cities africa.*.