Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2 » technologies _, technologies 4
contents index » context index, contents gender, contents intro
3.3 developing » 4 developing, 2 developing, 1 developing
developing a » developing _
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
a africa » 1 africa, can africa, em africa

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 index oral communication costs 3.3 developing a africa.*.