Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement il » developpement de, developpement et, developpement du
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
il afrique » l afrique, en afrique
die ddr » die der
dem ddr » der ddr, dem der, 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: typologie der variation ((die ddr) OR (dem ddr)) oral communication _ de developpement il afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie der variation ((die ddr) or (dem ddr)) oral communication _ de developpement il afrique.*.