Perhaps you should try some spelling variations:
communication between » communication networks
data communication » data communications
formulation over » formation over, formulation model, formulation where
im developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
technologies 4 » technologies _
4 formulation » _ formulation, 3 formulation, 2 formulation
between im » between ims, between ip, between iv
over does » cover does, der does, over de
does data » does cat

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 formulation over does data communication between im developpement en afrique.*.