Perhaps you should try some spelling variations:
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
la developpement » le developpement, de developpement, et developpement
developpement du » developpement de, developpement des, developpement et
3 interaction » 2 interaction, 3.2 interaction, 3.1 interaction
technology 3 » technology _, technology 1, technology 4
model free » model from
du afrique » en afrique, l afrique, de l'afrique
free 4.2 » tree 4.2
costs la » costs a, costs land, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology 3 interaction model free 4.2 communication costs la developpement du afrique.*.