Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2 » technologies _, technologies 4
3.3 developing » 4 developing, 2 developing, 1 developing
developing v » developing av, developing _, developing a
contents je » contents key, contents 1, contents _
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
v africa » 1 africa, em africa
je oral » new oral

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies 2 information contents je oral communication costs 3.3 developing v africa.*.