Perhaps you should try some spelling variations:
technologien des » technologien fur, technologien und, technologies 2
de communication » mobile communication, online communication
des information » des informations, does information, dis information
information aa » information ana, information a, information asia
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
e areas » 1 areas, 2 areas
4 areas » 1 areas, 2 areas, 4 areal
das de » das der, das dem, das den

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

• If you are trying to use Boolean operators, they must be ALL CAPS: technologien des information aa das de communication costs 4 developing ((e areas) OR (4 areas)).~.
• Adding a wildcard symbol may retrieve word variants: technologien des information aa das de communication costs 4 developing ((e areas) or (4 areas)).*.