Perhaps you should try some spelling variations:
2.14 communication » 2.4 communication, 5.4 communication, 2.3 communication
developing asia's » developing asian, developing areas
information cost » information costs, information lost, information case
4 information » 2 information, 1 information
asia's africa » asia africa, animals africa, arabs africa
technology 4 » technology _, technology 1, technology 3
4 developing » 3 developing
cost debate » class debate, trust debate
debate 2.14 » debate 2.1, debate 2.4, debatte 2.1.4
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 4 information cost debate 2.14 communication costs 4 developing asia's africa.*.