Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 2 » technologies _, technologies 4
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing em » developing e, developing eq, developing amp
contents new » contexts new, contents how, contents je
costs 2.3 » costs 4.2, costs 4.4
em africa » 1 africa
new oral » new moral, knew moral, new rural

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 new oral communication costs 2.3 developing em africa.*.