Perhaps you should try some spelling variations:
information costs » information contents, information centers, information content
de communication » mobile communication, online communication
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
2.2 de » 2.2 die, 2.2 der, 2.2 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 costs 2.2 de communication _ du developpement de l'afrique.*.