Perhaps you should try some spelling variations:
leur development » leur developpement, your development, spur development
de communication » mobile communication, online communication
typologies die » typologies _, typologie des, typologie der
development en » developpement en, development menu, development eco
die variation » de variation, does variation, der variation
im so » ii so, um so

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 die variation ((im so) OR (im sog)) de communication a leur development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies die variation ((im so) OR (im sog)) de communication a leur development en afrique.*.