Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
came communication » scale communication, time communication, face communication
communication cost » communication costs, communication costa, communications costs
technologies 4 » technologies _
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
4 information » 2 information, 1 information
century book » century bce
book came » book cases
cost 3.2 » cost 2.4

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 book came communication cost 3.2 developing _ africa.*.