Perhaps you should try some spelling variations:
measuring inequality » measuring quality
hardy's inequality » hardy inequality, holder's inequality
wage » wave
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 AND ((measuring inequality) OR (((((hardy's inequality) OR (harnack inequality))) OR (earnings inequality)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "wage and ((measuring inequality) or (((((hardy's inequality) OR (harnack inequality))) or (earnings inequality))))".
• Adding a wildcard symbol may retrieve word variants: wage and ((measuring inequality) or (((((hardy's inequality) OR (harnack inequality))) or (earnings inequality))))*.