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
4 developing » 3 developing
developing 1 » developing _, developing a, developing e
contents 10 » contents 1, contents 0, contents 19
10 oral » 10 moral, 1 oral, 14 oral
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 10 oral communication costs 4 developing 1 africa.*.