Perhaps you should try some spelling variations:
change information » chandos information, trade information
technology change » technological change, technological changes
information 2.3.1 » information 2.3.2, information 5.3.1, information 2.3.3
aid communication » rapid communication, aided communications, based communication
developpement l » developpement il, developpement la, developpement de
2.3.1 des » 2.3.1 does, 2.3.1 der, 2.3.1 das
l afrique » en afrique
des aid » does aid, less aid

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

• Adding a wildcard symbol may retrieve word variants: technology change information 2.3.1 des aid communication costs _ developpement l afrique.*.