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 2 » developing _, developing a, developing e
contents a » contents 1, contents _, contents i
costs 4 » costs _, costs a, costs 4.2
2 areas » 1 areas, 2 areal, 4 areas
a oral » _ oral, 2 oral, 4 oral

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 a oral communication costs 4 developing 2 areas.*.