Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
open development » clean development, driven development, human development
technology 2.3 » technology 2.2, technology 2.1, technology 3.3
2.3 inflation » 2.3.1 inflation, 5.33 inflation, 2 inflation
inflation und » inflation index, inflation _, inflation tax
costs open » cost open, costs over
case data » cases data, base data, use data
und case » und care, und cash, id case

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

• Adding a wildcard symbol may retrieve word variants: technology 2.3 inflation und case data communications costs open development latin afrique.*.