Perhaps you should try some spelling variations:
change information » chandos information, trade information
technology change » technological change, technological changes
information rates » information states, information ratio, information rules
developpement du » developpement de, developpement des, developpement et
d communication » de communication, 3 communication, 4 communication
rates case » rates cape, states case, rates east
du afrique » en afrique, l afrique, de l'afrique
case d » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technology change information rates case d communication costs _ developpement du afrique.*.