Perhaps you should try some spelling variations:
technologien series » technologies series, technology series, technologies varies
series information » business information
oral communication » personal communication
12.3 developing » 1.3 developing, 12.4 developing, 2.3 developing
developing a » developing _
costs 12.3 » costs 2.3, costs 12.4, costs 14.3
der oral » der moral, der ort, der orte
a access » 2 access, 3 access, 4 access
3.2 der » 2.2 der

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

• Adding a wildcard symbol may retrieve word variants: technologien series information 3.2 der oral communication costs 12.3 developing a access.*.