Perhaps you should try some spelling variations:
12.2.4 communication » 2.2.3 communication, 5.4 communication, 2.3 communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
technology 5.3 » technology 2.3, technology 3.3, technology 1.3
5.3 inflation » 5.33 inflation, 2.3 inflation, 5.4.3 inflation
inflation tax » inflation rate, inflation _, inflation target
prices 12.2.4 » prices 11.2.3, prices 14.3.4, prices 2.2.2
tax prices » gas prices, car prices, tax practices
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 5.3 inflation tax prices 12.2.4 communication costs a developpement en afrique.*.