Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
based information » basic information, based innovation, land information
information costs » information contents, information centers, information content
3 communication » 4 communication, de communication, data communication
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
costs debate » arts debate, city debate, class debate
developing 1 » developing _, developing a, developing e
debate 3 » debate _, debate 4, debate a
cost 2.2 » costs 2.2, cost 2.4, cost 3.2

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

• Adding a wildcard symbol may retrieve word variants: technology based information costs debate 3 communication cost 2.2 developing 1 africa.*.