Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
u.s communications » 3.1 communications, les communications, nps communications
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing east » development east, developing a, developing asia
information 2 » information 3
4 developing » 3 developing
east areas » karst areas, east asezs
state u.s » state 2.1, state 2.2, state 2.3
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 des information 2 state u.s communications costs 4 developing east areas.*.