Perhaps you should try some spelling variations:
5.2.3 communication » 2.2.3 communication, 3.2.3 communication, 2.8.3 communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
technology use » technology 1, technology 2.2, technology 3
use inflation » push inflation, und inflation, die inflation
inflation tax » inflation rate, inflation _, inflation target
price 5.2.3 » price 5.5.3, prices 7.2.3, price 2.3
de fabrique » la fabrique, de l'afrique
tax price » tax crime, fox price
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 use inflation tax price 5.2.3 communication costs 4 developpement de fabrique.*.