Perhaps you should try some spelling variations:
set developpement » et developpement, de developpement, le developpement
innovation case » innovation based, innovation chapter, innovation center
developpement l » developpement il, developpement la, developpement de
technologies 4 » technologies _
4 innovation » 2 innovation, 3 innovation, der innovation
l afrique » en afrique
a set » _ set

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 innovation case ((3.1 el) OR (1.1 el)) communication a set developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 innovation case ((3.1 el) OR (1.1 el)) communication a set developpement l afrique.*.