Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
inflation wages » inflation rates, inflation taxes, inflation targets
developpement l » developpement il, developpement la, developpement de
technology 2.3 » technology 2.2, technology 2.1, technology 3.3
2.3 inflation » 2.3.1 inflation, 5.33 inflation, 2 inflation
wages rice » wages race, wages prices, wage price
l afrique » en afrique
rice 4.1 » rice 2.1, rice 3.1, rice 1

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology 2.3 inflation wages rice 4.1 communication costs _ developpement l afrique.*.