Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
modulation targeting » duration targeting, compilation targeting, inflation targeting
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
technology 1 » technology _
1 modulation » _ modulation, 10.4 modulation, 1 motivation
targeting a » targeting _, targeting how
costs a » costs _, costs 4
a 3.1 » _ 3.1, a 3.2, a 3.3

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

• Adding a wildcard symbol may retrieve word variants: technology 1 modulation targeting a 3.1 communications costs a developpement en afrique.*.