Perhaps you should try some spelling variations:
information centers » information contents, information officers
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
14 developing » 4 developing, 1 developing, 10 developing
centers help » centers hold, centers real
developing 1 » developing _, developing a, developing e
help oral » help otl
costs 14 » costs 4, costs 1, costs 11.4

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

• Adding a wildcard symbol may retrieve word variants: technologien des information centers help oral communication costs 14 developing 1 africa.*.