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