Perhaps you should try some spelling variations:
oral communication » personal communication
information case » information based, information can, information costs
technologien f » technologien _, technologien 1, technologien 4
f information » 2 information, 1 information, 3 information
4 developing » 3 developing
developing a » developing _
case wage » base wage, base wages, case case
a africa » 1 africa, can africa, em 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 f information case wage oral communication costs 4 developing a africa.*.