Perhaps you should try some spelling variations:
agricultural sciences » agricultural science, agricultural prices, cultural sciences
agricultural studies » agricultural species, agricultural subsidies, multicultural studies
agricultural sources » agricultural resources, agricultural surveys, agricultural soils
agricultural survey » agricultural surveys, agricultural supply, agricultural society

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