Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
l afrique » en afrique
dem ddr » der ddr, dem der, den ddr
de ddr » der ddr, die ddr, den ddr

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: typology des variation ((de ddr) OR (dem ddr)) oral communication _ de developpement l afrique.~.
• Adding a wildcard symbol may retrieve word variants: typology des variation ((de ddr) or (dem ddr)) oral communication _ de developpement l afrique.*.