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
contents major » contents map, contents main, contents maps
4 developing » 3 developing
developing e » developing _, developing a, developing east
major oral » major odl, major oil, major global
e africa » em africa, de africa, eu africa
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 contents major oral communication costs 4 developing e africa.*.