Perhaps you should try some spelling variations:
oral communication » personal communication
dams development » dam development, gas development, ads development
development desd » development ssesd, development does, development deal
communication 2 » communication _, communication a, communication 3
variation uber » variationen uber, variation bei, variation der
desd afrique » en afrique, de l'afrique
6 variation » 6 variations, _ variation, 2 variation
typology 6 » typology _, typology 4.1
uber den » uber die
den oral » den ort, new oral
2 dams » 2 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 6 variation uber den oral communication 2 dams development desd afrique.*.