Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
communication cost » communication costs, communication costa, communications costs
get communication » et communication, debt communication, de communication
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
technologies 4 » technologies _
4 information » 2 information, 1 information
developing 1 » developing _, developing a, developing e
century 3.4 » century 3.1, century 3.2, century 3.3
cost 12.4 » coast 12.4, costs 12.4, cost 2.4
3.4 get » 5.4 get, 3.4 agent, 15.4 get

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information century 3.4 get communication cost 12.4 developing 1 africa.*.