Perhaps you should try some spelling variations:
6.2.4.2 communication » 6.2.4.1 communication, 6.2.4.3 communication, 3.2.3.2 communication
developpement du » developpement de, developpement des, developpement et
a developpement » au developpement, de developpement, le developpement
technology gap » technology 1, technology 2.2, technology 3
prices 6.2.4.2 » prices 2.2.2, prices 2.2.5.7, prices 3.4.2
gap inflation » has inflation, grade inflation, rapid inflation
inflation und » inflation index, inflation _, inflation tax
und prices » fund prices, land prices, bond prices
du afrique » en afrique, l afrique, de l'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 gap inflation und prices 6.2.4.2 communication costs a developpement du afrique.*.