Perhaps you should try some spelling variations:
aug developpement » au developpement, du developpement, ou developpement
developpement de » developpement des, developpement durable
communication 4 » communication _, communication a, communication 3
technologies 4 » technologies _
4 information » 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
b air » _ air, 7 air, 1 air
2 air » _ air, 2 aim
4 aug » 4 auf, 1 aug, 4 aus
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 (2 air)) mass communication 4 aug developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 information ((b air) OR (2 air)) mass communication 4 aug developpement de afrique.*.