Perhaps you should try some spelling variations:
data communication » data communications
change innovation » change information, chain innovation, trade innovation
au developpement » du developpement, de developpement, le developpement
innovation 4 » innovation _, innovation a, innovation 1
des afrique » en afrique, de l'afrique
costs au » costs a, costs amy, costs _
4 use » _ use, 2 use, 3 use
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 use data communication costs au developpement des afrique.*.