Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
data communication » data communications
information costs » information contents, information centers, information content
developpement et » developpement des, developpement de, development east
communication 4 » communication _, communication a, communication 3
technologie c » technologies 2, technologies 3, technologies 1
c information » 2 information, 1 information, 10 information
costs scanner » cost scanner, ct scanner
scanner data » cancer data, scarce data, annex data
et afrique » en afrique, l afrique
4 trade » 1 trade

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

• Adding a wildcard symbol may retrieve word variants: technologie c information costs scanner data communication 4 trade developpement et afrique.*.