Perhaps you should try some spelling variations:
technological model » technological models, technological tools, technological content
3.4.1 communication » 3.4.2 communication, 3.4.4 communication, 9.4.1 communication
model innovation » social innovation
innovation rate » innovation race, innovation create, innovation state
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
c 3.4.1 » c 3.1.1, c 3.2.1, act 3.4.1
costs a » costs _, costs 4
rate c » rate co, rate _, rate 4

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

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