Perhaps you should try some spelling variations:
oral communication » personal communication
u developpement » du developpement, au developpement, ou developpement
variation des » variation _, variation 6, variation series
de variation » der variation, die variation, does variation
figures oral » figures draw, figures a, figures from
typology de » typology _, typology 6, typology a
des afrique » en afrique, de l'afrique
a u » a un, a us

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

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