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

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