Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing em » developing e, developing eq, developing amp
4 developing » 3 developing
contents a » contents 1, contents _, contents i
em africa » 1 africa
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 contents a oral communication costs 4 developing em africa.*.