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
developing iv » developing av, developing ict, developing cil
4 developing » 3 developing
iv africa » v africa, 1 africa, em africa
costs 4 » costs _, costs a, costs 4.2
1 oral » 10 oral, 14 oral, 16 oral
contents » context

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 1 oral communication costs 4 developing iv africa.*.