Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
open development » clean development, driven development, human development
technology 4ir » technology 4, technology 4.1, technology 4.2
development en » developpement en, development menu, development eco
4ir inflation » der inflation, die inflation, aid inflation
inflation tax » inflation rate, inflation _, inflation target
costs open » cost open, costs over
tax use » taxi use, tax base

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 use data communications costs open development en afrique.*.