Perhaps you should try some spelling variations:
informations zentren » information centre, information centres, information centric
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
developing east » development east, developing a, developing asia
4 developing » 3 developing
zentren und » zentralen und, zentral und, zentrum und
east africa » west africa
und oral » und moral, und orte, und ort
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 des informations zentren und oral communication costs 4 developing east africa.*.