Perhaps you should try some spelling variations:
change information » chandos information, trade information
technology change » technological change, technological changes
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
information when » information what, information war, information wants
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
when crops » wheat crops
crops 2.1 » crops 2.4, groups 2.1, crops 12.4
l afrique » en afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology change information when crops 2.1 communication costs a developpement l afrique.*.