Perhaps you should try some spelling variations:
technologien sheet » technologien des, technologien gegen, technologien ist
oral communication » personal communication
sheet information » debt information, student information, credit information
information case » information based, information can, information costs
development do » development doi, development d, development ds
4 development » 2 development, 4 developing
do african » two african, _ african, 1 african
case new » use new
new oral » new moral, knew moral, new rural
costs 4 » costs _, costs a, costs 4.2

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologien sheet information case new oral communication costs 4 development do african.~.
• Adding a wildcard symbol may retrieve word variants: technologien sheet information case new oral communication costs 4 development do african.*.