Perhaps you should try some spelling variations:
data communication » data communications
development master » development matters, development chapter, development pattern
communication 3.3 » communication _, communication a, communication 1
activation cycle » activation case, activation system, activation foils
das development » dams development, gas development, does development
auf activation » a activation, auf motivation, base activation
typologie auf » typologie am, typologie fur, typologie zaku
cycle tax » cycle task, cycle gas, cycle a
tax data » edx data, x data
3.3 das » 2.3 das, 3.3 data

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

• Adding a wildcard symbol may retrieve word variants: typologie auf activation cycle tax data communication 3.3 das development master afrique.*.