Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
based information » basic information, based innovation, land information
developpement du » developpement de, developpement des, developpement et
3 communication » 4 communication, de communication, data communication
du afrique » en afrique, l afrique, de l'afrique
3.2 roles » 2.2 roles, 3.3 roles, 3.4 roles
roles 3 » roles _, role 3, roles 4

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

• Adding a wildcard symbol may retrieve word variants: technologies based information 3.2 roles 3 communication media _ developpement du afrique.*.