Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
technology 3.3.1 » technology 3.1.1, technology 3.2.1, technology 6.3.1
3.3.1 inflation » 2.3.1 inflation, 3.3.3 inflation, 5.4.1 inflation
inflation wages » inflation rates, inflation taxes, inflation targets
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
wages race » wages trade, wage rate, wages case
l afrique » en afrique
race 4.1 » race 4.10, rice 4.1, race 4.2
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 3.3.1 inflation wages race 4.1 communication costs 4 developpement l afrique.*.