Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
rent development » recent development, urgent development, grant development
technology rate » technology state, technology role, technology related
development lie » development life, development li, development lid
rate inflation » grade inflation, wage inflation, age inflation
inflation tax » inflation rate, inflation _, inflation target
lie afrique » l afrique
costs rent » costs res, costs credit
tax race » tax rate, tax rates, tax space
race 4.1 » race 4.10, rice 4.1, race 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology rate inflation tax race 4.1 communication costs rent development lie afrique.*.