Perhaps you should try some spelling variations:
under communications » under communication, border communications, modern communications
communications costs » communication costs, communications _
technologies era » technologies a, technologies art, technologies e
era transition » eca transition, a transition, la transition
3.3 developing » 4 developing, 2 developing, 1 developing
developing 4 » developing _, developing a, developing e
und under » und wunder, end under, und unter
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
4 areas » 1 areas, 2 areas, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologies era transition _ und under communications costs 3.3 developing 4 areas.*.