Perhaps you should try some spelling variations:
formulation over » formation over, formulation model, formulation where
technologies la » technologies a, technologies le, technologies lead
developpement l » developpement il, developpement la, developpement de
la formulation » la formulacion, _ formulation, la formation
over does » cover does, der does, over de
l afrique » en afrique
r b3 » r b, r bi
r 3 » nr 3

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies la formulation over does _ communication ((r b3) OR (r 3)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies la formulation over does _ communication ((r b3) OR (r 3)) developpement l afrique.*.