Perhaps you should try some spelling variations:
4.9 communication » 4.1 communication, 4 communication, 2.3 communication
technology 5.4.1 » technology 4.1, technology 5.1, technology 1.4.4
developpement de » developpement des, developpement durable
5.4.1 inflation » 5.4.3 inflation, 2.3.1 inflation, 5.4.1 information
4 developpement » de developpement, le developpement, et developpement
inflation food » inflation good, inflation from, inflation und
de fabrique » la fabrique, de l'afrique
prices 4.9 » prices 4.2, prices 4.6, prices 2.4
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 5.4.1 inflation food prices 4.9 communication costs 4 developpement de fabrique.*.