Perhaps you should try some spelling variations:
formulation over » formation over, formulation model, formulation where
developpement et » developpement des, developpement de, development east
4 communication » 3 communication, 5.4 communication, de communication
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
et afrique » en afrique, l afrique
over die » cover die, over de, over five
die 4 » die _, die e
a les » a lens, a less, 2 les
a le » a la, a l, a e

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 3 formulation over die 4 communication ((a le) OR (a les)) developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation over die 4 communication ((a le) OR (a les)) developpement et afrique.*.