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
contents kiel » contents key, contents akira, contents list
20 developing » 2 developing, 10 developing, 24 developing
developing a » developing _
kiel oral » kiel moral
costs 20 » costs 60, costs 2.3, costs 2.1
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 co information contents kiel oral communication costs 20 developing a africa.*.