Perhaps you should try some spelling variations:
communication model » communication media
technologies based » technologies used, technology based, technologies a
l520 developpement » le developpement, leur developpement, de developpement
based information » basic information, based innovation, land information
information gaps » information gap
la communication » data communication, data communications
developpement en » developpement et, developpement des, developpement de
gaps de » gaps do, camps de, gaps new

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

• Adding a wildcard symbol may retrieve word variants: technologies based information gaps de la communication model l520 developpement en afrique.*.