Perhaps you should try some spelling variations:
12.2.4 communication » 2.2.3 communication, 5.4 communication, 2.3 communication
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology 2.2 » technology _, technology 1, technology 3
2.2 inflation » 2.3 inflation, 3.2 inflation, 2.2.4 inflation
inflation das » inflation bias, inflation tax, inflation a
prices 12.2.4 » prices 11.2.3, prices 14.3.4, prices 2.2.2
das prices » gas prices, gas price, do prices
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 2.2 inflation das prices 12.2.4 communication costs a developpement de l'afrique.*.