Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing 1 » developing _, developing a, developing e
content 2.5 » contents 2.5, context 2.5, content 2.3
costs 2.3 » costs 4.2, costs 4.4
2.5 de » 2.5 die, 2.5 der, 2.5 dve

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information content 2.5 de communication costs 2.3 developing 1 africa.*.