Perhaps you should try some spelling variations:
ddr communication » de communication, csr communication, under communication
technologien des » technologien fur, technologien und, technologies 2
information case » information based, information can, information costs
des information » des informations, does information, dis information
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
case das » case des, case case, case data
das ddr » das der, des ddr, das dorf

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

• Adding a wildcard symbol may retrieve word variants: technologien des information case das ddr communication costs 4.2 developing _ areas.*.