Perhaps you should try some spelling variations:
developing societies » developing cities, developing strategies, developing countries
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
societies africa » sciences africa, securities africa, facilities africa
11.5 developing » 1.5 developing, 1.1.2 developing, 1.3 developing
technologies 2 » technologies _, technologies 4
cost 11.5 » cost 11.3, costs 11.1, costs 11.4
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information context 3 de communication cost 11.5 developing societies africa.*.