Perhaps you should try some spelling variations:
oral communication » personal communication
technologien nd » technologien und, technologien ad, technologie und
nd information » und information, d information, od information
developing av » developing a, developing ai, developing amp
contents new » contexts new, contents how, contents je
4 developing » 3 developing
av africa » v africa, iv africa, can africa
new oral » new moral, knew moral, new rural
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 nd information contents new oral communication costs 4 developing av africa.*.