Perhaps you should try some spelling variations:
interventionism schemes » interventionism shift
4 interventionism » _ interventionism, _ interventionist, 4 interventions
food irrigation » flood irrigation, fed irrigation, from irrigation
supply food » supply from, supply cold, supply crowd
supply 4 » supply _, supply a, supply 3
systems. » system.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply food irrigation systems. ) or ( supply 4 interventionism schemes. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply food irrigation systems. ) OR ( supply 4 interventionism schemes. )).
• Adding a wildcard symbol may retrieve word variants: (( supply food irrigation systems. ) or ( supply 4 interventionism schemes. ))*.