Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
irrigation schemes » irrigation scheme, irrigation systems
about integration » youth integration, about international, without integration
curve irrigation » surge irrigation, large irrigation, crop irrigation
supply about » supply cost, supply south, supply asset

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply about integration efforts. ) OR ( supply curve irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply about integration efforts. ) or ( supply curve irrigation schemes. ))*.