Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
technology 3.1.3 » technology 3.1.1, technology 2.1.3, technology 3.1.2
developpement et » developpement des, developpement de, development east
3.1.3 inflation » 3.3.3 inflation, 5.4.3 inflation, 3.1.2.2 inflation
4 developpement » de developpement, le developpement, et developpement
inflation wage » inflation rate, inflation target, inflation rates
et afrique » en afrique, l afrique
price 3.1 » prices 3.1, rice 3.1, price 3.2
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 3.1.3 inflation wage price 3.1 communication costs 4 developpement et afrique.*.