Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
developpement de » developpement des, developpement durable
inflation goods » inflation good, inflation gross, information goods
a developpement » au developpement, de developpement, le developpement
technology 3 » technology _, technology 1, technology 4
goods prices » goods services, gas prices
3 inflation » _ inflation, 2 inflation, 6 inflation
prices 2.7 » prices 2.4, prices 2.1, prices 2.3
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 3 inflation goods prices 2.7 communication costs a developpement de l'afrique.*.