Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
model communications » modern communications, border communications, aided communications
technologien does » technologien des, technologien als, technologie de
does information » des informations, dis information, users information
developing case » developing based, developing east, developing ce
information 1 » information 2, information 3, information 3.2
4 developing » 3 developing
state model » stage model, scale model
case trends » age trends, trade trends
1 state » 2 state, 3 state
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien does information 1 state model communications costs 4 developing case trends.*.