Perhaps you should try some spelling variations:
technological changes » technological change, technological advances
changes inflation » cases inflation, wages inflation, change information
de communication » mobile communication, online communication
a developpement » au developpement, de developpement, le developpement
inflation a » inflation _, inflation tax, inflation rate
des afrique » en afrique, de l'afrique
case de » case des, case d, case d1
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: technological changes inflation a case de communication costs a developpement des afrique.*.