Perhaps you should try some spelling variations:
2.3.4 communications » 2.3 communication, 12.2.4 communication, 12.4.4 communication
communications costs » communication costs, communications _
amy developpement » au developpement, de developpement, le developpement
developpement il » developpement de, developpement et, developpement du
inflation tax » inflation rate, inflation _, inflation target
prices 2.3.4 » prices 2.3.1, prices 2.3.5, prices 2.3.6
tax prices » gas prices, car prices, tax practices
il afrique » l afrique, en afrique
costs amy » costs a

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation tax prices 2.3.4 communications costs amy developpement il afrique.*.