Perhaps you should try some spelling variations:
5.4 communication » de communication, data communication
developing future » developing cultural
information case » information based, information can, information costs
3.1 developing » 3.3 developing, 3.2 developing, 4.1 developing
future africa » future african, future africa's, culture africa
technology 1 » technology _
case debates » care debate, cadiz debates, case debating
debates 5.4 » debates 10.4, debate 1.4, debate 2.4
costs 3.1 » costs 3.5, costs 4.1, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information case debates 5.4 communication costs 3.1 developing future africa.*.