Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information centre » information centers, information contents
technologien does » technologien des, technologien als, technologie de
developing cities » developing countries, developing annuities, developing economies
does information » des informations, dis information, users information
de communication » mobile communication, online communication
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
cities africa » societies africa, parties africa, rates africa
centre 16 » centre 11, centre 2016, centre 4.6
cost 12.4 » coast 12.4, costs 12.4, cost 2.4
16 de » 16 die, 16 der, 16 le

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

• Adding a wildcard symbol may retrieve word variants: technologien does information centre 16 de communication cost 12.4 developing cities africa.*.