Perhaps you should try some spelling variations:
duration targeting » modulation targeting, inflation targeting, subnational targeting
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
technology 1 » technology _
targeting a » targeting _, targeting how
1 duration » _ duration, a duration, i duration
costs 4 » costs _, costs a, costs 4.2
a 1.4 » ra 1.4, _ 1.4, a 1.1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 duration targeting a 1.4 communication costs 4 developpement en afrique.*.