Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
transformation als » transformation a, transformation _, transformation 1
de transformation » die transformation, e transformation, 1 transformation
technologies de » technologies _, technologies 4, technologies 2
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
modell voice » modell von, modell die, modell ohne
als modell » das modell

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

• Adding a wildcard symbol may retrieve word variants: technologies de transformation als modell voice communication costs 4.2 developing _ area.*.