Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
information und » informations und
4 developing » 3 developing
models oral » modern oral, models model, models order
und models » und modell, wound models, und modelle
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information und models oral communication costs 4 developing _ access.*.