Perhaps you should try some spelling variations:
transfer interaction » transport interaction, transfer intervention, transfer extraction
interaction term » interaction _
4 communication » 3 communication, 5.4 communication, de communication
4 developpement » de developpement, le developpement, et developpement
des afrique » en afrique, de l'afrique
term rate » term rates, term care
costs 4 » costs _, costs a, costs 4.2
rate 4 » rate _

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

• Adding a wildcard symbol may retrieve word variants: technology transfer interaction term rate 4 communication costs 4 developpement des afrique.*.