Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
case information » care information, based information, phase information
information what » information war, information when, information wants
developpement du » developpement de, developpement des, developpement et
technology case » technology based, technology can, technology change
a developpement » au developpement, de developpement, le developpement
du afrique » en afrique, l afrique, de l'afrique
what case » what came, what causes, what caused
case 6.2 » case 6.12, case f6.2, case 4.2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology case information what case 6.2 communication costs a developpement du afrique.*.