Perhaps you should try some spelling variations:
development does » development data, development 1, development 1.1
communications 3 » communications _, communications a, communications 5
das development » dams development, gas development, does development
variation der » variation des, variation bei, variation _
does afrique » en afrique, does africa
em data » them data, aim data, dpm data
nm data » aim data, dpm data, gbm data
3 das » 1 das, 2 das

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologies _ variation der ((em data) OR (nm data)) communications 3 das development does afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies _ variation der ((em data) OR (nm data)) communications 3 das development does afrique.*.