Perhaps you should try some spelling variations:
leur development » leur developpement, your development, spur development
communication 3 » communication _, communication a
development en » developpement en, development menu, development eco
variation did » variation des, variation der, variation im
o online » go online, 1 online, 3 online
2 online » 1 online, 3 online, 4 online
3 leur » a leur, 3 lehr

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 ((o online) OR (2 online)) communication 3 leur development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies _ variation did ((o online) OR (2 online)) communication 3 leur development en afrique.*.