Perhaps you should try some spelling variations:
3.4.2 communication » 3.3.2 communication, 3.4.1 communication, 3.4.4 communication
technological open » technological model, technological power, technological options
au developpement » du developpement, de developpement, le developpement
innovation rate » innovation race, innovation create, innovation state
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
ad 3.4.2 » pd 3.4.2, adas 3.4.2, akt 3.4.2
costs au » costs a, costs amy, costs _
rate ad » rate a, rate band, rate cap

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

• Adding a wildcard symbol may retrieve word variants: technological open innovation rate ad 3.4.2 communication costs au developpement l afrique.*.