Perhaps you should try some spelling variations:
green communications » greece communications, recent communications, sweden communications
communications costs » communication costs, communications _
information centers » information contents, information officers
14.1 developing » 4.1 developing, 3.4.1 developing, 1.3 developing
developing data » developing a, developing asia, developing east
technologies 2 » technologies _, technologies 4
data africa » ratha african, intra africa, baga african
costs 14.1 » costs 4.1, costs 11.1, costs 14.3
centers 4 » centers _, center 4, centers 3
4 green » 2 green, 1 green

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centers 4 green communications costs 14.1 developing data africa.*.