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
20 developing » 2 developing, 10 developing, 24 developing
context 2.1 » context 1
costs 20 » costs 60, costs 2.3, costs 2.1
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 20 developing _ africa.*.