Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
development east » development southeast, development 1
information a » information age, information about
3 development » 2 development
technology 1 » technology _
east africa » west africa
debate 2.1 » debate 6.1, debate 1, debate 4.2
a debate » _ debate, a debattre, el debate
costs 3 » costs _, costs 4, costs a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology 1 information a debate 2.1 communication costs 3 development east africa.~.
• Adding a wildcard symbol may retrieve word variants: technology 1 information a debate 2.1 communication costs 3 development east africa.*.