Perhaps you should try some spelling variations:
oral communication » personal communication
technologies do » technologies de, technologies box, technologies daf
do information » 2 information, 1 information, 3 information
2.1 developing » 2.2 developing, 2.3 developing, 2.6 developing
contents kiel » contents key, contents akira, contents list
developing a » developing _
kiel oral » kiel moral
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
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 do information contents kiel oral communication costs 2.1 developing a africa.*.