Perhaps you should try some spelling variations:
oral communication » personal communication
communication pour » communication our, communication pt, communication policy
de development » e development, ce development, de developpement
a afrique » l afrique, en afrique
flows do » flows how, flows job, flows _
do oral » do rural, who oral
pour de » pour des, pour le, pour se

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information flows do oral communication pour de development a afrique.*.