Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
developpement il » developpement de, developpement et, developpement du
isolation wages » isolation age, isolation wards, isolation care
a developpement » au developpement, de developpement, le developpement
from isolation » from innovation, from imitation, from information
wages race » wages trade, wage rate, wages case
il afrique » 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 from isolation wages race 3.2 communication costs a developpement il afrique.*.