Perhaps you should try some spelling variations:
interaction aware » interaction feature, interaction figure, interaction term
des developpement » des developpements, de developpement, le developpement
2 communication » 3 communication, 4 communication, 1 communication
developpement l » developpement il, developpement la, developpement de
aware trade » aware trace, aware leader
costs des » costs fees
l afrique » en afrique
trade 2 » trade _, trade a, trade 4

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

• Adding a wildcard symbol may retrieve word variants: technology _ interaction aware trade 2 communication costs des developpement l afrique.*.