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 en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
technologie 2 » technologies 2, technologie c, technologie 3
annex data » annex daten, index data, scanner data
2 trade » 1 trade, 4 trade

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

• Adding a wildcard symbol may retrieve word variants: technologie 2 information costs annex data communication 2 trade developpement en afrique.*.