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