Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
information what » information war, information when, information wants
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
get information » gets information, debt information, ct information
technology get » technology gap, technology gaps, technology 21st
what trade » wheat trade, hat trade, what made
trade 3.1 » trade 3.2, trade 4.1, trade 2.1
costs le » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology get information what trade 3.1 communication costs le developpement en afrique.*.