Perhaps you should try some spelling variations:
integration schemes » integration schengen, irrigation schemes, integration regimes
integration theory » integration through, information theory, innovation theory
side integration » die integration, de integration, life integration
supply fare » supply case, supply figure, supply curve
supply farm » supply from, support farm

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

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