Perhaps you should try some spelling variations:
change innovation » change information, chain innovation, trade innovation
au developpement » du developpement, de developpement, le developpement
3 communication » 4 communication, de communication, data communication
developpement l » developpement il, developpement la, developpement de
innovation 4 » innovation _, innovation a, innovation 1
l afrique » en afrique
costs au » costs a, costs amy, costs _
case 3 » case 1, case 2
technological » technologies

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

• Adding a wildcard symbol may retrieve word variants: technological change innovation 4 case 3 communication costs au developpement l afrique.*.