Perhaps you should try some spelling variations:
communication between » communication networks
des developpements » deux developpements, de developpement, et developpements
developpements l » developpements de, developpement il, developpement la
3 communication » 4 communication, de communication, data communication
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
between des » between de, between modes, between nodes
l afrique » en afrique
does 3 » does _, does a, does e

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation _ does 3 communication between des developpements l afrique.*.