Perhaps you should try some spelling variations:
7.2.3 communication » 2.2.3 communication, 3.2.3 communication, 7.2.1 communication
developpement en » developpement et, developpement des, developpement de
technology 5.33 » technology 5.3, technology 5.3.1, technology 2.3
a developpement » au developpement, de developpement, le developpement
5.33 inflation » 3.3.3 inflation, 5.4.3 inflation, 2.3 inflation
inflation und » inflation index, inflation _, inflation tax
prices 7.2.3 » prices 7.2.2, prices 11.2.3, price 5.2.3
und prices » fund prices, land prices, bond 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 5.33 inflation und prices 7.2.3 communication costs a developpement en afrique.*.