Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
oral communication » personal communication
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
developing use » developing e, developing ce, developing csi
content about » contents about, concerns about, concepts about
2 developing » 3 developing, 4 developing, 2 development
about oral » about rural, about organ, about oil
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information content about oral communication costs 2 developing use africa.*.