Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
inflation wages » inflation rates, inflation taxes, inflation targets
developpement l » developpement il, developpement la, developpement de
technology 2 » technology _, technology 1, technology 3
2 inflation » 12 inflation, _ inflation, 6 inflation
wages race » wages trade, wage rate, wages case
l afrique » en afrique
race 3.1 » rice 3.1, race 3.7, space 3.1

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation wages race 3.1 communications costs _ developpement l afrique.*.