Perhaps you should try some spelling variations:
developpements rural » developpement rural, development rural, developpement durable
des developpements » deux developpements, de developpement, et developpements
technologies based » technologies used, technology based, technologies a
based formulation » basic formulation, case formulation, based simulation
formulation der » formulation des, formulation de, formulation over
e communication » de communication, 1 communication, une communication
rural africa » rural area
does e » does de, does _, does a

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

• Adding a wildcard symbol may retrieve word variants: technologies based formulation der does e communication _ des developpements rural africa.*.