Perhaps you should try some spelling variations:
15 communications » 5 communications, 10 communications, 14 communications
developpement du » developpement de, developpement des, developpement et
technologies 4 » technologies _
formative eyes » formative years, formative peer, formative use
4 formative » _ formative, 3 formative, 2 formative
du afrique » en afrique, l afrique, de l'afrique
eyes how » ears how, iles how, ples how
how 15 » how 12, how 45
av et » av ett, av en, ag et
a et » a set, a net, a bet

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 4 formative eyes how 15 communications ((av et) OR (a et)) developpement du afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 formative eyes how 15 communications ((av et) OR (a et)) developpement du afrique.*.