Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
2.3.4 communications » 2.3 communication, 12.2.4 communication, 12.4.4 communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
technology how » technology 1, technology 2.2, technology 3
how inflation » low inflation, log inflation, has inflation
inflation das » inflation bias, inflation tax, inflation a
prices 2.3.4 » prices 2.3.1, prices 2.3.5, prices 2.3.6
das prices » gas prices, gas price, do prices
de afrique » de l'afrique, en afrique, l afrique
costs 4 » costs _, costs a, costs 4.2

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology how inflation das prices 2.3.4 communications costs 4 developpement de afrique.*.