Perhaps you should try some spelling variations:
oral communication » personal communication
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
variation among » starvation among, formation among, variation von
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
among donors » among doctors, among actors
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation among donors oral communication _ au developpement de afrique.*.