Perhaps you should try some spelling variations:
change information » chandos information, trade information
technology change » technological change, technological changes
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
amy developpement » au developpement, de developpement, le developpement
information dar » information der, information data, information due
developpement l » developpement il, developpement la, developpement de
costs amy » costs a
l afrique » en afrique
dar case » der case, our case, per case
case 6.2 » case 6.12, case f6.2, case 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology change information dar case 6.2 communication costs amy developpement l afrique.*.