Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
communication index » communication india, communication ideas, communication instead
oral communication » personal communication
developpement du » developpement de, developpement des, developpement et
typologien die » typologien der, typologie des, typologie der
die variation » de variation, does variation, der variation
variation 14 » variation 4, variation 3.4, variation 6.4
du afrique » en afrique, l afrique, de l'afrique
etc oral » etc moral, etc arab, etc iran

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

• Adding a wildcard symbol may retrieve word variants: typologien die variation 14 etc oral communication index trade developpement du afrique.*.