Perhaps you should try some spelling variations:
technologien about » technologien auf, technologien fur, technologien als
oral communication » personal communication
about information » account information, labor information, about inflation
information based » information case, information bank, transformation based
developing areas » developing asia, developing east, developing a
a developing » a development
areas africa » arabs africa, dress africa, farmers africa
based key » based keys, based new, based pay
key oral » key brac, why oral
costs a » 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 about information based key oral communication costs a developing areas africa.*.