Perhaps you should try some spelling variations:
learning inequality » learning quality, measuring inequality, deepening inequality
hacking inequality » tackling inequality, taking inequality, matching inequality
garding inequality » garding's inequality, hardy inequality, hardy's inequality
facing inequality » falling inequality, tracing inequality, taking 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 ((((facing inequality) OR (hacking inequality))) OR (((((learning inequality) OR (garding inequality))) OR (earnings inequality)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "wage and ((((facing inequality) OR (hacking inequality))) or (((((learning inequality) or (garding inequality))) or (earnings inequality))))".
• Adding a wildcard symbol may retrieve word variants: wage and ((((facing inequality) OR (hacking inequality))) or (((((learning inequality) or (garding inequality))) or (earnings inequality))))*.