Perhaps you should try some spelling variations:
technology change » technological change, technological changes
change innovation » change information, chain innovation, trade innovation
7.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
innovation rates » innovation rate, innovation notes, innovation race
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
rates more » creates more, rates money, takes more
l afrique » en afrique
more 7.2 » more 2.2, more 4.2, care 7.2
costs 4 » costs _, costs a, costs 4.2

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 more 7.2 communication costs 4 developpement l afrique.*.