Perhaps you should try some spelling variations:
trade developement » trade development, trade developments, trades development
oral communication » personal communication
developement de » developpement de, developpement des, developpements de
ideologie de » ideologie der, ideologie des, ideologie du
de variation » der variation, die variation, does variation
costs trade » costly trade
de afrique » de l'afrique, en afrique, l afrique
4 oral » _ oral, 2 oral

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

• Adding a wildcard symbol may retrieve word variants: ideologie de variation _ 4 oral communication costs trade developement de afrique.*.