Perhaps you should try some spelling variations:
technologien series » technologies series, technology series, technologies varies
series information » business information
oral communication » personal communication
information und » informations und
direkte oral » direkte oder
4 developing » 3 developing
und direkte » und direkter, und direktes, und direkt
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: technologien series information und direkte oral communication costs 4 developing _ areas.*.