Perhaps you should try some spelling variations:
educational disparities » educational authorities, educational distribution
agricultural industries » agricultural inputs
rationale disparities » national disparities, regional disparities, regionale disparitaten
industries great » industry great, industries japan, industries a
great die » great duet, great fire, great life

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

• Performing a fuzzy search may retrieve terms with similar spellings: agricultural industries great die ((rationale disparities) OR (educational disparities)).~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "agricultural industries great die ((rationale disparities) OR (educational disparities)).".
• Adding a wildcard symbol may retrieve word variants: agricultural industries great die ((rationale disparities) OR (educational disparities)).*.