Perhaps you should try some spelling variations:
oral communication » personal communication
technologien cost » technologien ist, technologien des, technologies co
information costs » information contents, information centers, information content
cost information » postal information, about information, asset information
developing human » development human, developing a, developing asia
a developing » a development
human africa » roman africa, urban africa, can africa
costs new » cost new, costs net, costs how
new oral » new moral, knew moral, new rural
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien cost information costs new oral communication costs a developing human africa.*.