Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
irrigation system » irrigation systems, irrigation water, irrigation scheme
case irrigation » scale irrigation, use irrigation, change irrigation
et integration » et l'integration, test integration, text integration
supply case » supply cost, supply chain, supply curve
supply et » supply _, supply a, supply 3

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

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