Perhaps you should try some spelling variations:
oral communication » personal communication
au developpement » du developpement, de developpement, le developpement
communication 3 » communication _, communication a
how variation » how valuation, does variation, four variation
des l'afrique » de l'afrique, de l'amerique
typology how » typology from, typology _, typology 4.1
variation d » variation de, variation du, variation _
first oral » first organ, first deal, first drupal
d first » 2d first, 3d first, 2 first
3 au » 3 auf, 3 a, 3 zu

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

• Adding a wildcard symbol may retrieve word variants: typology how variation d first oral communication 3 au developpement des l'afrique.*.