Perhaps you should try some spelling variations:
change information » chandos information, trade information
technology change » technological change, technological changes
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
information case » information based, information can, information costs
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
case case » base case, case based, use case
case 5.2 » case 4.2, case 3.2, case 2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology change information case case 5.2 communication costs a developpement en afrique.*.