Perhaps you should try some spelling variations:
4.3.2 communication » 3.3.2 communication, 4.2.2 communication, 4.3 communication
inflation levels » inflation rates, education levels, pollution levels
developpement la » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
technology 10 » technology 110, technology 1, technology 11
levels prices » level price, cereals prices, metals prices
10 inflation » 12 inflation, 10.7 inflation, _ inflation
prices 4.3.2 » prices 3.3.2, prices 14.3.4, price 6.3.2
la afrique » l afrique, la fabrique, en afrique
costs a » 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 10 inflation levels prices 4.3.2 communication costs a developpement la afrique.*.