Perhaps you should try some spelling variations:
2.3.1 communication » 2.3.1.1 communication, 2.3 communication, 2.2.3 communication
technology have » technology hard, technology has, technologies have
inflation gross » inflation across, inflation process, information gross
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
have inflation » wage inflation, age inflation, has inflation
gross price » cross price, goods price
price 2.3.1 » prices 2.3.1, prices 2.3.4, prices 2.3.5
l afrique » 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 have inflation gross price 2.3.1 communication costs a developpement l afrique.*.