Perhaps you should try some spelling variations:
formal communication » informal communication, oral communication, moral communication
de developpement » sme development
variation being » variation bei, variation using, variation among
does variation » de variation, der variation, die variation
typology does » typologie des, apology do's, typology how
cross formal » loss formal, across informal, cross modal
being cross » being across, using cross, doing cross
des afrique » en afrique, de l'afrique

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

• Adding a wildcard symbol may retrieve word variants: typology does variation being cross formal communication _ de developpement des afrique.*.