Perhaps you should try some spelling variations:
agricultural sources » agricultural resources, agricultural surveys, agricultural survey
agricultural studies » agricultural subsidies, multicultural studies, agricultural services
agricultural species » horticultural species, agricultural aspects, agricultural space
22cultural studies » cultural sudies, culture studies, culturele studies

Try widening your search to All Fields.

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: %((((((22cultural studies) OR (structural studies))) OR (cultural studies))) OR (((((agricultural studies) OR (agricultural sources))) OR (agricultural species)))) AND transdisciplinarity in education%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((((22cultural studies) or (structural studies))) or (cultural studies))) or (((((agricultural studies) OR (agricultural sources))) or (agricultural species)))) and transdisciplinarity in education%22".
• Adding a wildcard symbol may retrieve word variants: %((((((22cultural studies) or (structural studies))) or (cultural studies))) or (((((agricultural studies) OR (agricultural sources))) or (agricultural species)))) and transdisciplinarity in education%22*.