Perhaps you should try some spelling variations:
technologien about » technologien auf, technologien fur, technologien als
information centre » information centers, information contents
oral communication » personal communication
about information » account information, labor information, about inflation
4 developing » 3 developing
developing v » developing av, developing _, developing a
centre de » centre _, centrale des
v africa » 1 africa, em africa
de oral » de otras, new oral
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 about information centre de oral communication costs 4 developing v africa.*.