Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
technologien als » technologien des, technologien fur, technologien und
de communication » mobile communication, online communication
als information » als informations, aids information, laws information
15 developing » 1 developing, 5 developing, 10 developing
developing a » developing _
context 3.1 » context 2.1, context 1, context 1.3
a africa » 1 africa, can africa, em africa
cost 15 » cost 12, cost 5, cost 11.5
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 als information context 3.1 de communication cost 15 developing a africa.*.