Perhaps you should try some spelling variations:
developpements de » developpement de, developpement des, developpement du
4 developpements » et developpements, des developpements, de developpement
dis integration » disintegration _
2 communication » 3 communication, 4 communication, 1 communication
technology dis » technology does, technology 4ir, technology dlt
de afrique » de l'afrique, en afrique, l afrique
3 trade » 1 trade, 4 trade, 2 trade
trade 2 » trade _, trade a, trade 4
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 dis integration 3 trade 2 communication costs 4 developpements de afrique.*.