Perhaps you should try some spelling variations:
4.2 developpement » 4.2 development, de developpement, le developpement
developpement de » developpement des, developpement durable
technology rate » technology state, technology role, technology related
rate inflation » grade inflation, wage inflation, age inflation
inflation 2 » inflation _, inflation a, inflation 1
de afrique » de l'afrique, en afrique, l afrique
2 prices » 2 price, 2 proces, do prices

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

• Adding a wildcard symbol may retrieve word variants: technology rate inflation 2 prices _ communication costs 4.2 developpement de afrique.*.