Perhaps you should try some spelling variations:
developpement et » developpement des, developpement de, development east
technologie 8 » technologien 8, technologie c, technologie 3
8 informal » _ informal, 3 informal, vs informal
et afrique » en afrique, l afrique
de mobile » die mobile, e mobile, does mobile
best du » best do, best out, best run
est du » est au

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: "technologie 8 informal _ de mobile communication ((best du) OR (est du)) developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologie 8 informal _ de mobile communication ((best du) OR (est du)) developpement et afrique.*.