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 does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation den » variation des, variation der, variation de
il afrique » l afrique, en afrique
den ddr » der ddr, dem ddr, des ddr

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

• Adding a wildcard symbol may retrieve word variants: typologie does variation den ddr oral communication a la developpement il afrique.*.