Perhaps you should try some spelling variations:
oral communication » personal communication
variation does » variation des, variation notes, variation der
development en » developpement en, development menu, development eco
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
does de » does debt
de oral » de otras, new oral
a ads » ma ads, _ ads, a aus
a abs » 2 abs, 1 abs, 3 abs

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 does de oral communication ((a ads) OR (a abs)) development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie die variation does de oral communication ((a ads) OR (a abs)) development en afrique.*.