Perhaps you should try some spelling variations:
7.2.3 communication » 2.2.3 communication, 3.2.3 communication, 7.2.1 communication
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology has » technology hard, technology have, technology how
has inflation » how inflation, u.s inflation, cases inflation
inflation co » inflation can, inflation rob, inflation von
prices 7.2.3 » prices 7.2.2, prices 11.2.3, price 5.2.3
de afrique » de l'afrique, en afrique, l afrique
co prices » do prices, co primes, coal prices
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 has inflation co prices 7.2.3 communication costs a developpement de afrique.*.