Perhaps you should try some spelling variations:
data communication » data communications
information 2.3.1 » information 2.3.2, information 5.3.1, information 2.3.3
technologien d » technologien ad, technologien _, technologien 1
d information » nd information, od information, und information
2.3.1 dts » 2.3.1 das, 2.3.1 des, 2.3.2 dts
dts data » das data, dhs data, des data
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 d information 2.3.1 dts data communication costs a development _ access.*.