Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
oral communication » personal communication
developing areas » developing asia, developing east, developing a
technologien 2 » technologies 2, technologien _, technologien 1
4 developing » 3 developing
areas africa » arabs africa, dress africa, farmers africa
content new » contents new, context new, contexts new
new oral » new moral, knew moral, new rural
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information content new oral communication costs 4 developing areas africa.*.