Perhaps you should try some spelling variations:
interaction inter » interaction term, interaction india, interaction chapter
inter political » under political, internet political, internal political
3 communication » 4 communication, de communication, data communication
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
1 interaction » 10 interaction, 17 interaction, 19 interaction
technology 1 » technology _
political 3 » political _, political 1, political 2
l afrique » en afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 1 interaction inter political 3 communication costs 4 developpement l afrique.*.