Perhaps you should try some spelling variations:
oral communication » personal communication
communication 12 » communication 1, communication 2, communication 10
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
variation uber » variationen uber, variation bei, variation der
typologie bei » topologien bei, typologie des, typologie der
bei variation » de variation, der variation, based variation
uber den » uber die
den oral » den ort, new oral
12 de » 12 die, 12 der, 12 do

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

• Adding a wildcard symbol may retrieve word variants: typologie bei variation uber den oral communication 12 de developpement en afrique.*.