Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
technology die » technologie die, technology does, technology 4ir
costs resource » cost resource, coastal resource, crisis resource
development li » development lid, development lie, development lin
die inflation » does inflation, der inflation, price inflation
inflation und » inflation index, inflation _, inflation tax
li afrique » l afrique, en afrique
und cash » und case, und care, und carl
cash 3.1 » case 3.1, cash 3.2, cash 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 und cash 3.1 communications costs resource development li afrique.*.