Perhaps you should try some spelling variations:
mine developpement » mine development, de developpement, le developpement
developpement de » developpement des, developpement durable
selection rates » selection rules, rejection rates, selection sites
technology 2.2 » technology _, technology 1, technology 3
2.2 selection » 12.2 selection, 3.2 selection, 2.1 selection
costs mine » costs money, costs timing
de afrique » de l'afrique, en afrique, l afrique
rates des » rates der, rates fees, rates d

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 selection rates des _ communication costs mine developpement de afrique.*.