Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
communication cost » communication costs, communication costa, communications costs
information costs » information contents, information centers, information content
developpement en » developpement et, developpement des, developpement de
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
a mobile » _ mobile
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: technologies a information costs a mobile communication cost leur developpement en afrique.*.