Perhaps you should try some spelling variations:
secure communication » remote communication, science communication, mobile communication
developed content » developed contexts, developed control, development contents
content assessed » contexts assessed, contents assessing, context assessing
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
2.1 developed » 2.0 developed, 5.1 developed, 6.1 developed
ii secure » id secure, _ secure, a secure
costs 2.1 » costs 2.3, costs 4.1, costs 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information _ ii secure communication costs 2.1 developed content assessed.*.