Perhaps you should try some spelling variations:
oral communication » personal communication
technologien cost » technologien ist, technologien des, technologies co
cost information » postal information, about information, asset information
contents how » content how, contents co, contents mot
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
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 cost information contents how oral communication costs 4 developing 1 africa.*.