Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
variation der » variation des, variation bei, variation _
typology des » typologie des, typologie der, typology _
l afrique » en afrique
new oral » new moral, knew moral, new rural
der new » under new, der neue
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typology des variation der new oral communication a de developpement l afrique.*.