Perhaps you should try some spelling variations:
oral communication » personal communication
sms development » smes development, dams development, gas development
development des » development does, development desd, development ds
variation uber » variationen uber, variation bei, variation der
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
des afrique » en afrique, de l'afrique
uber den » uber die
den oral » den ort, new oral

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

• Adding a wildcard symbol may retrieve word variants: typology der variation uber den oral communication _ sms development des afrique.*.