Perhaps you should try some spelling variations:
change information » chandos information, trade information
leur developpement » le developpement, deux developpements, de developpement
developpement en » developpement et, developpement des, developpement de
3 communication » 4 communication, de communication, data communication
information 2 » information 3
2 eco » _ eco, 4 eco, 2 ecm
eco 3 » eco _, ecb 3, hco 3
technological » technologies

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

• Adding a wildcard symbol may retrieve word variants: technological change information 2 eco 3 communication a leur developpement en afrique.*.