Perhaps you should try some spelling variations:
oral communication » personal communication
du developpement » de developpement, le developpement, et developpement
developpement et » developpement des, developpement de, development east
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
variation 27 » variation 2, variation 7, variation 2.1
first oral » first organ, first deal, first drupal
et afrique » en afrique, l afrique
27 first » 2 first, 28 first, 2d first

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

• Adding a wildcard symbol may retrieve word variants: typology der variation 27 first oral communication _ du developpement et afrique.*.