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
3.3 developing » 4 developing, 2 developing, 1 developing
developing a » developing _
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
new oral » new moral, knew moral, new rural
a africa » 1 africa, can africa, em africa

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 3.3 developing a africa.*.