Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
technologien stm » technologien am, technologien im, technologien ist
stm information » crm information, system information, from information
developing cpia » developing china, developing asia, developing cil
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 stm information costs how oral communication costs 4 developing cpia africa.*.