Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
mine development » sme development, trade development, business development
inflation areas » inflation targets, inflation across, inflation rates
technology low » technology flow, technology law, technology led
low inflation » core inflation, _ inflation
development l » development li, development 1, development law
areas figure » needs figure, rates figure, wages figure
figure 2.1 » figure 2.2, figure 4.1
costs mine » costs money, costs timing
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology low inflation areas figure 2.1 communication costs mine development l afrique.*.