Perhaps you should try some spelling variations:
oral communication » personal communication
developpement l » developpement il, developpement la, developpement de
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
variation des » variation _, variation 6, variation series
l afrique » en afrique
dem oral » dem gral, dem ort
des dem » das dem, des der, des des
a does » 2 does, 1 does, 3 does
4 does » 2 does

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: "typologie die variation des dem oral communication ((a does) OR (4 does)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie die variation des dem oral communication ((a does) OR (4 does)) developpement l afrique.*.