Perhaps you should try some spelling variations:
wired communications » aided communications, speed communications, wireless communications
communications costs » communication costs, communications _
information und » informations und
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
technologies 2 » technologies _, technologies 4
developing e » developing _, developing a, developing east
costs 12.4 » costs 11.4, costs 12.3, costs 2.4
e areal » _ areal, 2 areal, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information und _ wired communications costs 12.4 developing e areal.*.