Perhaps you should try some spelling variations:
technologien secondary » technologien bedarf, technologies necessary
secondary information » security information
oral communication » personal communication
developing base » developing based, developing east, developing brain
information 2 » information 3
a developing » a development
base areas » basic areas, based areal, basin areas
der oral » der moral, der ort, der orte
costs a » costs _, costs 4
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: technologien secondary information 2 der oral communication costs a developing base areas.*.