Perhaps you should try some spelling variations:
2.3.5 communications » 2.3 communication, 3.5 communication, 2.5 communication
communications costs » communication costs, communications _
3.1 development » 2 development
development des » development does, development desd, development ds
technology 1 » technology _
prices 2.3.5 » prices 2.3.1, prices 2.3.4, prices 2.3.6
1 inflation » 10 inflation, 12 inflation, _ inflation
des banques » des bandes, des baues, de banque
costs 3.1 » costs 3.5, costs 4.1, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 inflation _ prices 2.3.5 communications costs 3.1 development des banques.*.