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

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 ((learning inequality) OR (((((garding inequality) OR (garding's inequality))) OR (hardy's inequality)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wage or wave) and ((learning inequality) or (((((garding inequality) OR (garding's inequality))) or (hardy's inequality))))".
• Adding a wildcard symbol may retrieve word variants: (wage or wave) and ((learning inequality) or (((((garding inequality) OR (garding's inequality))) or (hardy's inequality))))*.