Perhaps you should try some spelling variations:
oral communication » personal communication
does developpement » de developpement, des developpements, does development
typologie gender » typologie der, typologie unter, typologie einiger
gender variation » der variation, genetic variation, gender action
developpement et » developpement des, developpement de, development east
variation des » variation _, variation 6, variation series
et afrique » en afrique, l afrique
des dirk » des ddr, des der, des diw

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

• Adding a wildcard symbol may retrieve word variants: typologie gender variation des dirk oral communication _ does developpement et afrique.*.