Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
integration schemes » irrigation schemes, integration some
farm integration » fare integration, firms integration, care integration
supply case » supply cost, supply chain, supply curve
supply use » supply curve, supply asset, supply under

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply farm integration schemes. ) or ( ((supply use) OR (supply case)) integration theories. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply farm integration schemes. ) OR ( ((supply use) OR (supply case)) integration theories. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply farm integration schemes. ) or ( ((supply use) OR (supply case)) integration theories. ))".
• Adding a wildcard symbol may retrieve word variants: (( supply farm integration schemes. ) or ( ((supply use) OR (supply case)) integration theories. ))*.