Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
de communication » mobile communication, online communication
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
90 developing » 10 developing, 20 developing, 3 developing
context 2.1 » context 1
costs 90 » costs 20, costs 60, costs 1900
2.1 de » 2.1 die, 2.1 der, 2.1 do

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

• Adding a wildcard symbol may retrieve word variants: technologies a information context 2.1 de communication costs 90 developing _ africa.*.