Perhaps you should try some spelling variations:
information centuries » information centres, information centers, information centre
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing 1.1 » developing _, developing a, developing e
4 developing » 3 developing
centuries a » centuries _, centuries 1, centuries 2
1.1 african » 11 african, 2.1 african, 4.1 african
costs 4 » costs _, costs a, costs 4.2
a oral » _ oral, 2 oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien des information centuries a oral communication costs 4 developing 1.1 african.*.