Perhaps you should try some spelling variations:
2.3.5 communication » 2.3 communication, 2.2.3 communication, 2.5 communication
2.3 development » 2 development, 2015 development, 1 development
development 1.1 » development 2.1, development 2.3, development 2.2
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
inflation gas » inflation das, inflation bias, inflation tax
prices 2.3.5 » prices 2.3.1, prices 2.3.4, prices 2.3.6
1.1 risques » 1.1 issues, 2.2 risques
costs 2.3 » costs 4.2, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation gas prices 2.3.5 communication costs 2.3 development 1.1 risques.*.