Perhaps you should try some spelling variations:
11.4.1 communication » 10.4.3 communication, 12.4.4 communication, 13.4.5 communication
developpement de » developpement des, developpement durable
technology flow » technology low, technology from, technology food
a developpement » au developpement, de developpement, le developpement
flow inflation » low inflation, food inflation, log inflation
inflation gas » inflation das, inflation bias, inflation tax
price 11.4.1 » prices 11.3.1, prices 11.2.3, price 10.1
gas price » gas 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 flow inflation gas price 11.4.1 communication costs a developpement de l'afrique.*.