Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
technologies aids » technologies varies, technologies a, technologies de
aids information » chandos information, series information
2c developing » 2 developing, 20 developing, 24 developing
developing e » developing _, developing a, developing east
costs 2c » costs 20, costs 2.3, costs 2.1
e areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies aids information _ und mobile communications costs 2c developing e areas.*.