Perhaps you should try some spelling variations:
2.5 communication » 2.3 communication, 2.7 communication, 3.5 communication
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
targeting gap » targeting a, targeting fao, targeting tax
technology 1 » technology _
1 inflation » 10 inflation, 12 inflation, _ inflation
gap 2.5 » gap 2.3
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 1 inflation targeting gap 2.5 communication costs a developpement de l'afrique.*.