Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
oral communication » personal communication
technologien der » technologien des, technologie der, technologien fur
der information » insider information, sector information, labor information
4 developing » 3 developing
developing a » developing _
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.

• Adding a wildcard symbol may retrieve word variants: technologien der information century new oral communication costs 4 developing a africa.*.