Perhaps you should try some spelling variations:
oral communication » personal communication
developpement l » developpement il, developpement la, developpement de
typologien die » typologien der, typologie des, typologie der
die variation » de variation, does variation, der 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 les » a lens, a less, 2 les
a le » a la, a l, a e

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

• Performing a fuzzy search may retrieve terms with similar spellings: typologien die variation bei es oral communication ((a le) OR (a les)) developpement l afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "typologien die variation bei es oral communication ((a le) OR (a les)) developpement l afrique.*".