Perhaps you should try some spelling variations:
oral communication » personal communication
technologien cost » technologien ist, technologien des, technologies co
cost information » postal information, about information, asset information
information case » information based, information can, information costs
4 developing » 3 developing
developing a » developing _
case new » use new
new oral » new moral, knew moral, new rural
a africa » 1 africa, can africa, em africa
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 cost information case new oral communication costs 4 developing a africa.~.
• Adding a wildcard symbol may retrieve word variants: technologien cost information case new oral communication costs 4 developing a africa.*.