Perhaps you should try some spelling variations:
cell communications » cell communication, health communications, rural communications
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
variation der » variation des, variation bei, variation _
does cell » es cell
a un » a une
_ un » _ us, _ uk
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 der does cell communications ((a un) OR (_ un)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie des variation der does cell communications ((a un) OR (_ un)) developpement en afrique.*.