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 u, a su, a zu
a o » a co
typologie » typologies, typology

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: "typologie des variation _ figures only communications ((a ou) OR (a o)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie des variation _ figures only communications ((a ou) OR (a o)) developpement de afrique.*.