Perhaps you should try some spelling variations:
duration targeting » modulation targeting, inflation targeting, subnational targeting
5.4 communication » de communication, data communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
technology 1 » technology _
targeting a » targeting _, targeting how
1 duration » _ duration, a duration, i duration
costs a » costs _, costs 4
a 5.4 » a 5.1, a 3.4, a 5.3

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 5.4 communication costs a developpement en afrique.*.