Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
technologies 2 » technologies _, technologies 4
information 1 » information 2, information 3, information 3.2
4 developing » 3 developing
developing e » developing _, developing a, developing east
costs 4 » costs _, costs a, costs 4.2
e areal » _ areal, 2 areal, 4 areal
1 und » _ und, i und, 2 und

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 und online communication costs 4 developing e areal.*.