Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
private irrigation » gravity irrigation
fare integration » trade integration, die integration
support private » supporting private, support climate, supply private
support fare » support farm, support farmers, support future
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: (( support fare integration efforts. ) or ( support private irrigation systems. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support fare integration efforts. ) OR ( support private irrigation systems. )).
• Adding a wildcard symbol may retrieve word variants: (( support fare integration efforts. ) or ( support private irrigation systems. ))*.