Perhaps you should try some spelling variations:
5.5.1 communication » 4.5.1 communication, 5.5.2 communication, 3.4.1 communication
technology tools » technology thesis
tools innovation » models innovation, does innovation, als innovation
developpement il » developpement de, developpement et, developpement du
innovation rate » innovation race, innovation create, innovation state
il afrique » l afrique, en afrique
ag 5.5.1 » ag 5.5.2, cai 5.5.1, gap 5.5.1
rate ag » rate a, rate cap, rate afr

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

• Adding a wildcard symbol may retrieve word variants: technology tools innovation rate ag 5.5.1 communication costs _ developpement il afrique.*.