Perhaps you should try some spelling variations:
oral communication » personal communication
communication law » communications law, communication layer, communication 3
development en » developpement en, development menu, development eco
des variation » does variation, de variation, der variation
6 first » 3 first, 1 first, 4 first
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 ((6 first) OR (2 first)) oral communication law _ development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie des variation ((6 first) OR (2 first)) oral communication law _ development en afrique.*.