Perhaps you should try some spelling variations:
technologien secondary » technologien bedarf, technologies necessary
secondary information » security information
oral communication » personal communication
development base » development based, development case, development cases
information 3 » information 2
base areas » basic areas, based areal, basin areas
debt oral » debt moral, debt oil
costs a » costs _, costs 4
3 debt » 83 debt, 4 debt, 2.3 debt

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

• Adding a wildcard symbol may retrieve word variants: technologien secondary information 3 debt oral communication costs a development base areas.*.