Perhaps you should try some spelling variations:
formulation cover » formulation over, formation over, formulation model
developpement l » developpement il, developpement la, developpement de
technologies a » technologies _, technologies 4, technologies 2
a formulation » la formulation, _ formulation, 3 formulation
cover does » cover die, cover das, cover der
l afrique » en afrique
r b1 » r b, _ b1, r bi
r 1 » nr 1, rq 1, ar 1

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 a formulation cover does _ communication ((r b1) OR (r 1)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies a formulation cover does _ communication ((r b1) OR (r 1)) developpement l afrique.*.