Perhaps you should try some spelling variations:
information costs » information contents, information centers, information content
communication 3.3 » communication _, communication a, communication 1
air developpement » au developpement, leur developpement, de developpement
la communication » data communication, data communications
developpement en » developpement et, developpement des, developpement de
costs 2.3 » costs 4.2, costs 4.4
3.3 air » 3.3 ai, 17.3 air, 3.3 aims

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information costs 2.3 la communication 3.3 air developpement en afrique.*.