Perhaps you should try some spelling variations:
data communication » data communications
formulation over » formation over, formulation model, formulation where
du developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
networks du » networks _, networks 1, networks a
over does » cover does, der does, over de
does data » does cat
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulation over does data communication networks du developpement l afrique.*.