Perhaps you should try some spelling variations:
oral communication » personal communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
variation de » variation des, variation der, variation due
first oral » first organ, first deal, first drupal
de first » der first, d first, we first

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

• Adding a wildcard symbol may retrieve word variants: typology des variation de first oral communication _ a developpement en afrique.*.