Perhaps you should try some spelling variations:
trade development » software development
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
technology die » technologie die, technology does, technology 4ir
development en » developpement en, development menu, development eco
die inflation » does inflation, der inflation, price inflation
targeting gap » targeting a, targeting fao, targeting tax
costs trade » costly trade
gap 4.2 » gaps 4.2, gdp 4.2, gap 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation targeting gap 4.2 communication costs trade development en afrique.*.