Perhaps you should try some spelling variations:
informations centers » information centers, information center, information centre
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
7.3 developing » 3.3 developing, 1.3 developing, 2.2 developing
developing a » developing _
centers de » centers _, centres de, centers 10
costs 7.3 » costs 2.3, costs 4.3, costs 5.3
a africa » 1 africa, can africa, em africa
de oral » de otras, new oral

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

• Adding a wildcard symbol may retrieve word variants: technologien des informations centers de oral communication costs 7.3 developing a africa.*.