Perhaps you should try some spelling variations:
technology change » technological change, technological changes
change innovation » change information, chain innovation, trade innovation
innovation rates » innovation rate, innovation notes, innovation race
de developpement » sme development
2 communication » 3 communication, 4 communication, 1 communication
developpement l » developpement il, developpement la, developpement de
rates wage » rates have, rates aged, rates cape
l afrique » en afrique
costs de » costs _, costs 4, costs a
wage 2 » wage _, wage a, wage 2.2

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

• Adding a wildcard symbol may retrieve word variants: technology change innovation rates wage 2 communication costs de developpement l afrique.*.