Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
et communication » et communicatione, get communication, debt communication
land development » world development, child development
relation zur » relation _
costly land » cost land, costs land, country land
zur crisis » zur krisis, euro crisis, eu crisis
crisis et » crisis el, crisis en, crisis eu

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

• Adding a wildcard symbol may retrieve word variants: technology _ relation zur crisis et communication costly land development africa north.*.