Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
regulation crime » regulation croisee, regulation regime, regulation china
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology law » technology 1, technology 2.2, technology 3
law regulation » law regulations, laws regulations, flow regulation
crime rate » crime rates
de afrique » de l'afrique, en afrique, l afrique
rate 2.2 » rate 2.4, rate 4.2, rate 5.2
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 law regulation crime rate 2.2 communication costs a developpement de afrique.*.