Perhaps you should try some spelling variations:
moral communications » moral communication, oral communication, rural communications
communications costs » communication costs, communications _
trade developpement » trade developement, trade development, de developpement
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
variation 1 » variations 1, variation _, variation 6
costs trade » costly trade
des moral » der moral, debt moral, die moral
1 des » 1 das, 1 der, a des
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 1 des moral communications costs trade developpement en afrique.*.