Perhaps you should try some spelling variations:
oral communication » personal communication
la developpement » le developpement, de developpement, et developpement
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
dem ddr » dem der, den ddr, des ddr

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 der variation ((dem ddr) OR (der ddr)) oral communication a la developpement il afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie der variation ((dem ddr) OR (der ddr)) oral communication a la developpement il afrique.*.