Perhaps you should try some spelling variations:
formulation over » formation over, formulation model, formulation where
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
communication r » communication 3, communication 1, communication 2
technologies a » technologies _, technologies 4, technologies 2
a formulation » la formulation, _ formulation, 3 formulation
over do » over de, ever do, over die
r du » r d, _ du, 1 du

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

• Adding a wildcard symbol may retrieve word variants: technologies a formulation over do _ communication r du developpement en afrique.*.