Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
oral communication » personal communication
based information » basic information, based innovation, land information
information 10.4 » information 1.2, information 1.3, information 14.3
du developpement » de developpement, le developpement, et developpement
developpement du » developpement de, developpement des, developpement et
communication 2 » communication _, communication a, communication 3
du afrique » en afrique, l afrique, de l'afrique
10.4 2 » 10.4 _, 10.4 a, 10.4 k
2 oral » _ oral, 4 oral
2 du » 2 zu, 2 de, 2 eu

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

• Adding a wildcard symbol may retrieve word variants: technologies based information 10.4 2 oral communication 2 du developpement du afrique.*.