Perhaps you should try some spelling variations:
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
developpement et » developpement des, developpement de, development east
formulation des » formation des, formulacion de, formulation _
technologies 2 » technologies _, technologies 4
2 formulation » _ formulation, 3 formulation, la formulation
et afrique » en afrique, l afrique
des how » des hofs, eyes how, iles how
how 1.4 » how 1.6, how 2.4, how 3.4
a le » a les, 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 2 formulation des how 1.4 communication ((a le) OR (a la)) developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 formulation des how 1.4 communication ((a le) OR (a la)) developpement et afrique.*.