Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
developpement de » developpement des, developpement durable
technologies 4 » technologies _
4 formative » _ formative, 3 formative, 2 formative
de afrique » de l'afrique, en afrique, l afrique
years how » ears how, gears how, years down
how de » how doe, how do, how ae
a net » a new, _ net, a neo
a et » a set, a bet, a jet

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 years how de communication ((a et) OR (a net)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 formative years how de communication ((a et) OR (a net)) developpement de afrique.*.