Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
variation across » variations across, education across, variation series
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
across crimes » across crises, across regimes, across time
crimes data » prices data, times data, choices data
l afrique » en afrique
costs de » 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 _ variation across crimes data communications costs de developpement l afrique.*.