Perhaps you should try some spelling variations:
2.3.1 communication » 2.3.1.1 communication, 2.3 communication, 2.2.3 communication
developpement et » developpement des, developpement de, development east
a developpement » au developpement, de developpement, le developpement
inflation und » inflation index, inflation _, inflation tax
technology 4 » technology _, technology 1, technology 3
prices 2.3.1 » prices 2.3.4, prices 2.3.5, prices 2.3.6
4 inflation » _ inflation, 2 inflation, 6 inflation
und prices » fund prices, land prices, bond prices
et afrique » en afrique, l afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology 4 inflation und prices 2.3.1 communication costs a developpement et afrique.*.