Perhaps you should try some spelling variations:
oral communication » personal communication
does development » dams development, ides development, smes development
variation uber » variationen uber, variation bei, variation der
development de » development d, development ds, developpement de
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
uber den » uber die
den oral » den ort, new oral
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: typology de variation uber den oral communication a does development de l'afrique.*.