Perhaps you should try some spelling variations:
oral communication » personal communication
et developpement » de developpement, le developpement, test development
developpement et » developpement des, developpement de, development east
typologien does » typologie des, typologien der, typologie der
does variation » de variation, der variation, die variation
et afrique » en afrique, l afrique
from oral » from moral, from rural, from oil
a et » a set, a net, a bet

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

• Adding a wildcard symbol may retrieve word variants: typologien does variation _ from oral communication a et developpement et afrique.*.