Perhaps you should try some spelling variations:
information centres » information centre, information centrism, information centers
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing east » development east, developing a, developing asia
4 developing » 3 developing
centres und » centres using
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 information centres und oral communication costs 4 developing east africa.*.