Perhaps you should try some spelling variations:
duration targeting » modulation targeting, inflation targeting, subnational targeting
technology change » technological change, technological changes
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement et » developpement des, developpement de, development east
change duration » change education, change migration, change equation
targeting apo » targeting a, targeting als, targeting fao
et afrique » en afrique, l afrique
apo 4.1 » npo 4.1, dapp 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology change duration targeting apo 4.1 communication costs _ developpement et afrique.*.