Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
oral communication » personal communication
des variation » does variation, de variation, der variation
des l'afrique » de l'afrique, de l'amerique
ethics oral » ethics moral, ethics forum
costs trade » costly trade
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 _ ethics oral communication costs trade developpement des l'afrique.*.