Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3 communications » 3 communication, 2 communications, 4 communications
technologies 2 » technologies _, technologies 4
3.3 developing » 4 developing, 2 developing, 1 developing
contents past » contents part, contents fase, context past
developing e » developing _, developing a, developing east
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
e africa » em africa, de africa, eu africa
past 3 » past _, past 2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information contents past 3 communications costs 3.3 developing e africa.*.