Perhaps you should try some spelling variations:
technology 2.3.1 » technology 6.3.1, technology 2.1.1, technology 2.3.2
developpement et » developpement des, developpement de, development east
2.3.1 inflation » 2.2.4 inflation, 2.3 inflation, 3.3.3 inflation
3 communication » 4 communication, de communication, data communication
4 developpement » de developpement, le developpement, et developpement
index prices » index price, index places, index provinces
et afrique » en afrique, l afrique
prices 3 » prices _, prices a, prices 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 2.3.1 inflation index prices 3 communication costs 4 developpement et afrique.*.