Perhaps you should try some spelling variations:
only communications » online communications, italy communications, cell communications
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
de afrique » de l'afrique, en afrique, l afrique
a ou » a o, a su, a zu
a u » a un, a us
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 _ figures only communications ((a ou) OR (a u)) developpement de afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie des variation _ figures only communications ((a ou) or (a u)) developpement de afrique.*.