Perhaps you should try some spelling variations:
technologien series » technologies series, technology series, technologies varies
series information » business information
oral communication » personal communication
4 developing » 3 developing
developing a » developing _
costs 4 » costs _, costs a, costs 4.2
a areas » 1 areas, 2 areas, 4 areas
1 oral » 10 oral, 14 oral, 16 oral
contents » context

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

• Adding a wildcard symbol may retrieve word variants: technologien series information contents 1 oral communication costs 4 developing a areas.*.