Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
overview section » overview social
de communication » mobile communication, online communication
developpements l » developpements de, developpement il, developpement la
section 3 » section 1, section 2
costs des » costs fees
l afrique » en afrique
trade de » trade die, rade de, trade date
3 trade » 1 trade, 4 trade, 2 trade

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

• Adding a wildcard symbol may retrieve word variants: methodological overview section 3 trade de communication costs des developpements l afrique.*.