Perhaps you should try some spelling variations:
mitigating policies » mitigation policies, integrating policies, mitigating political
irrigation schemes » irrigation scheme, irrigation systems
growth mitigating » growth estimating, note mitigating
tool irrigation » total irrigation, flood irrigation, local irrigation
supply tool » supply school, support tool, supply donor

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

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