Perhaps you should try some spelling variations:
data communication » data communications
communication cost » communication costs, communication costa, communications costs
technologien fur » technologien des, technologien und, technologies 2
fur information » zur information, fair information, your information
developing city » developing cities, developing data, developing high
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
city africa » china africa, cults africa
cost 1.4 » cost 14.4, cost 2.4, cost 1.2
1 data » 2.1 data, 3.1 data, 4.1 data
contents » context

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

• Adding a wildcard symbol may retrieve word variants: technologien fur information contents 1 data communication cost 1.4 developing city africa.*.