Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
3.2 communication » 3 communication, 2.3 communication, de communication
developpements en » developpement en, developpement et, developpements de
integration 4 » integration 3
trade 3.2 » trade 2.2, trade 2, trade 4.1
costs des » costs fees
4 trade » 1 trade

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

• Adding a wildcard symbol may retrieve word variants: technology _ integration 4 trade 3.2 communication costs des developpements en afrique.*.