Perhaps you should try some spelling variations:
garding inequality » garding's inequality, hardy inequality, rising inequality
hardy's inequality » hardy inequality, holder's inequality, harnack inequality
earnings » learning, warning

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (wage OR wave) AND ((((garding inequality) OR (hardy's inequality))) OR (earnings inequality)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wage or wave) and ((((garding inequality) OR (hardy's inequality))) or (earnings inequality))".
• Adding a wildcard symbol may retrieve word variants: (wage or wave) and ((((garding inequality) OR (hardy's inequality))) or (earnings inequality))*.