Perhaps you should try some spelling variations:
tools information » models information, pooled information, does information
information wages » information age, information wants, information war
3.2 communication » 3 communication, 2.3 communication, de communication
technology tools » technology thesis
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
wages race » wages trade, wage rate, wages case
l afrique » en afrique
race 3.2 » race 3.7, race 4.2, rice 3.2
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 tools information wages race 3.2 communication costs a developpement l afrique.*.