Perhaps you should try some spelling variations:
oral communication » personal communication
developpement l » developpement il, developpement la, developpement de
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
variation bei » variation des, variation der, variation _
l afrique » en afrique
es oral » vs oral, des moral, new oral
bei es » bei ex
a le » a les, a l, a e

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologien der variation bei es oral communication ((a le) OR (a la)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologien der variation bei es oral communication ((a le) OR (a la)) developpement l afrique.*.