Perhaps you should try some spelling variations:
change innovation » change information, chain innovation, trade innovation
de communication » mobile communication, online communication
developpement en » developpement et, developpement des, developpement de
innovation rate » innovation race, innovation create, innovation state
a developpement » au developpement, de developpement, le developpement
rate east » rates east, trade east, state east
east de » least de, east side, east new
costs a » costs _, costs 4
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 rate east de communication costs a developpement en afrique.*.