Perhaps you should try some spelling variations:
integration wage » integration wege, integration wie, integration work
3 communication » 4 communication, de communication, data communication
4 developpement » de developpement, le developpement, et developpement
12 integration » 1.2 integration, r12 integration, 2 integration
technology 12 » technology 1.2, technology 1, technology 2
des afrique » en afrique, de l'afrique
wage trade » wages trade, wage rate, jade trade
trade 3 » 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 12 integration wage trade 3 communication costs 4 developpement des afrique.*.