Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
inflation levels » inflation rates, education levels, pollution levels
development lid » development led, development li, development lie
levels small » level small, levels mark, levels state
lid afrique » l afrique
small 6.2 » small 6.1, all 6.2
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation levels small 6.2 communication costs 2 development lid afrique.*.