Perhaps you should try some spelling variations:
2.10 communication » 2.14 communication, 2.3 communication, 2.7 communication
variation across » variations across, education across, variation series
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
across crimes » across crises, across regimes, across time
crimes 2.10 » crimes 3.1
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 _ variation across crimes 2.10 communication costs a developpement l afrique.*.