Perhaps you should try some spelling variations:
4.6 communication » 4.1 communication, 7.6 communication, 11.6 communication
technology 6.3.1 » technology 3.1, technology 3.1.1, technology 3.2.1
developpement du » developpement de, developpement des, developpement et
6.3.1 inflation » 2.3.1 inflation, 3.3.3 inflation, 5.4.1 inflation
4 developpement » de developpement, le developpement, et developpement
inflation food » inflation good, inflation from, inflation und
du fabrique » la fabrique
prices 4.6 » prices 4.2, prices 4.9, prices 6.6
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 6.3.1 inflation food prices 4.6 communication costs 4 developpement du fabrique.*.