Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
open development » clean development, driven development, human development
technology 2.2 » technology _, technology 1, technology 3
2.2 inflation » 2.3 inflation, 3.2 inflation, 2.2.4 inflation
inflation und » inflation index, inflation _, inflation tax
costs open » cost open, costs over
base data » based data, case data, basic data
und base » und basel, land base, und baden

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 inflation und base data communications costs open development latin afrique.*.