Perhaps you should try some spelling variations:
1.3 communication » 2.3 communication, 13 communication, 4.3 communication
information have » information how, information harness, transformation have
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
have trade » slave trade, have made
trade 1.3 » trade 16.3, trade 4.3, trade 5.3
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 a information have trade 1.3 communication costs 4 developpement en afrique.*.