Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
developing amp » developing a, developing ai, developing av
12 developing » 1.2 developing, 2 developing, 1 developing
context 3.1 » context 2.1, context 1, context 1.3
amp africa » em africa, wup africa
cost 12 » cost 1.2, cost 15, cost 3.2
3.1 de » 3.1 die, 3.1 der, 3.1 def

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information context 3.1 de communication cost 12 developing amp africa.*.