Perhaps you should try some spelling variations:
leur development » leur developpement, your development, spur development
communication 5 » communication _, communication a, communication 3
development eco » development second, development east, development menu
variation did » variation des, variation der, variation im
eco afrique » en afrique
5 leur » a leur
so 3 » so _, o 3, st 3
do 3 » do _, do i, do a

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: "typologies _ variation did ((so 3) OR (do 3)) communication 5 leur development eco afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies _ variation did ((so 3) OR (do 3)) communication 5 leur development eco afrique.*.