Perhaps you should try some spelling variations:
communication cross » communication costs
oral communication » personal communication
trade development » software development
development de » development d, development ds, developpement de
des variation » does variation, de variation, der variation
cross trade » crops trade, gross trade, across grade
de afrique » de l'afrique, en afrique, l afrique
ex oral » new oral
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation _ ex oral communication cross trade development de afrique.*.