Perhaps you should try some spelling variations:
ai communication » ii communication, i communication, de communication
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
ddr ai » ddr i
a des » a der
a das » 1 das, 2 das, 3 das
typologie » typologies, typology

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: typologie des variation _ ddr ai communication ((a des) OR (a das)) developpement de l'afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie des variation _ ddr ai communication ((a des) or (a das)) developpement de l'afrique.*.