Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centres » information centre, information centrism, information centers
et communications » et communication, et communicatione, 10 communications
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
developing av » developing a, developing ai, developing amp
4 developing » 3 developing
centres a » centres _, centre a, centuries a
av africa » v africa, iv africa, can africa
costs 4 » costs _, costs a, costs 4.2
a et » a set, a net, a bet

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information centres a et communications costs 4 developing av africa.*.