Perhaps you should try some spelling variations:
oral communication » personal communication
technologien am » technologien im, technologien als, technologie im
developing cpia » developing china, developing asia, developing cil
am information » guam information, palm information, crm information
contents how » content how, contents co, contents mot
4 developing » 3 developing
how oral » how moral, how rural, how arab
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 am information contents how oral communication costs 4 developing cpia africa.*.