Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing seas » developing areas, developing east, developing self
information 1 » information 2, information 3, information 3.2
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
1 der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 1 der online communication costs 4 developing seas areas.*.