Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
development manuel » developpement manuel, development model, development master
communications a » communications _, communications law, communications media
dams development » dam development, gas development, ads development
variation der » variation des, variation bei, variation _
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
does rural » homes rural
a dams » a das, _ dams, a dam

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

• Adding a wildcard symbol may retrieve word variants: typology de variation der does rural communications a dams development manuel afrique.*.