Perhaps you should try some spelling variations:
oral communication » personal communication
dams development » dam development, gas development, ads development
communication 3 » communication _, communication a
development des » development does, development desd, development ds
variation uber » variationen uber, variation bei, variation der
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
des afrique » en afrique, de l'afrique
uber den » uber die
den oral » den ort, new oral
3 dams » 3 das, _ dams, 6 dams

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 3 dams development des afrique.*.