Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
education factor » education factors, education sector, reduction factor
developpement il » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
technology set » technology sector, technology 1, technology 2.2
set education » et education, spot education, ict education
prices 6.2 » prices 3.2, prices 4.2, prices 5.2
il afrique » l afrique, en afrique
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 set education factor prices 6.2 communication costs a developpement il afrique.*.