Perhaps you should try some spelling variations:
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
de developpement » sme development
technology 4ir » technology 4, technology 4.1, technology 4.2
4ir inflation » der inflation, die inflation, aid inflation
inflation tax » inflation rate, inflation _, inflation target
des afrique » en afrique, de l'afrique
tax case » tax cases, tax base, tax bases
case 4.2 » case 4.1, case 2
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology 4ir inflation tax case 4.2 communication costs de developpement des afrique.*.