Perhaps you should try some spelling variations:
oral communication » personal communication
technologies co » technologies _, technologies 4, technologies 2
co information » do information, 2 information, 1 information
developing iv » developing av, developing ict, developing cil
4 developing » 3 developing
contents de » contents je, contents key, contents 1
iv africa » v africa, 1 africa, em africa
de oral » de otras, new 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: technologies co information contents de oral communication costs 4 developing iv africa.*.