Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
communication 1 » communication _, communication a, communication 3
a developpement » au developpement, de developpement, le developpement
technologies 4 » technologies _
4 information » 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
b air » _ air, 2 air, 1 air
7 air » _ air, 2 air, 7 ai
mass » maps

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 information ((b air) OR (7 air)) mass communication 1 a developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 information ((b air) OR (7 air)) mass communication 1 a developpement de afrique.*.