Perhaps you should try some spelling variations:
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
18 developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
parks inflation » market inflation, markup inflation, area inflation
inflation tax » inflation rate, inflation _, inflation target
efforts 18 » efforts 1.5, efforts _, efforts 4
tax sales » tax rules, gas sales, car sales
sales 4.2 » sales 4.0, sales 4.3, sales 7.1

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

• Adding a wildcard symbol may retrieve word variants: technology parks inflation tax sales 4.2 communication efforts 18 developpement en afrique.*.