Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
a information » 2 information, 1 information
information a » information age, information about
technology a » technology 1, technology 3, technology 4
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology a information a _ mobile communications costs et developpement en afrique.*.