Perhaps you should try some spelling variations:
2.3.1.1 communication » 2.2.5.4 communication, 3.4.1 communication, 6.2.4.1 communication
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
a developpement » au developpement, de developpement, le developpement
gaps inflation » has inflation, grade inflation, rapid inflation
prices 2.3.1.1 » primer 2.3.1.1, prices 2.2.5.7, prices 2.3.4
inflation do » inflation co, inflation der, inflation das
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 gaps inflation do prices 2.3.1.1 communication costs a developpement en afrique.*.