Perhaps you should try some spelling variations:
technology leaders » technology readiness, technology trade, technology users
de communication » mobile communication, online communication
developpement il » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
leaders sector » leaders section, leading sector
wages race » wages trade, wage rate, wages case
il afrique » l afrique, en afrique
race de » race du, france de, place de
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology leaders sector wages race de communication costs 4 developpement il afrique.*.