Perhaps you should try some spelling variations:
technological changes » technological change, technological advances
changes inflation » cases inflation, wages inflation, change information
3 communication » 4 communication, de communication, data communication
4 developpement » de developpement, le developpement, et developpement
inflation a » inflation _, inflation tax, inflation rate
des afrique » en afrique, de l'afrique
costs 4 » costs _, costs a, costs 4.2
a cave » a chave, a case, a care
cave 3 » cave _, wave 3, cave 2

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 cave 3 communication costs 4 developpement des afrique.*.