Perhaps you should try some spelling variations:
technological power » technological model, technological models, technological growth
3.4.1 communication » 3.4.2 communication, 3.4.4 communication, 9.4.1 communication
power innovation » foster innovation, der innovation, user innovation
au developpement » du developpement, de developpement, le developpement
innovation race » innovation rate, innovation space, innovation brac
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
costs au » costs a, costs amy, costs _
c 3.4.1 » c 3.1.1, c 3.2.1, act 3.4.1
race c » race _, race 4, race a

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

• Adding a wildcard symbol may retrieve word variants: technological power innovation race c 3.4.1 communication costs au developpement l afrique.*.