Perhaps you should try some spelling variations:
personal communication » interpersonal communication
development manuel » developpement manuel, development model, development master
dams development » dam development, gas development, ads development
variation des » variation _, variation 6, variation series
der personal » der personalen, der personen, der person
2 variation » 2 variations
typology 2 » typology _, typology 6, typology a
des der » des dr, des ddr, des dem

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

• Adding a wildcard symbol may retrieve word variants: typology 2 variation des der personal communication _ dams development manuel afrique.*.