Perhaps you should try some spelling variations:
leur development » leur developpement, your development, spur development
communication 5 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
des variation » does variation, de variation, der variation
variation did » variation des, variation der, variation im
5 leur » a leur
so 3 » so _, o 3, st 3
do 3 » do _, do i, do a
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 did ((so 3) OR (do 3)) communication 5 leur development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie des variation did ((so 3) OR (do 3)) communication 5 leur development en afrique.*.