Perhaps you should try some spelling variations:
"support plans integration efforts." » "support plans international efforts.", "support plans conservation efforts.", "support means integration efforts.", "support banlkans integration efforts.", "support keegans integration efforts.", "support land integration efforts.", "support place integration efforts.", "support pilots integration efforts."
"support scale irrigation systems." » "support stage irrigation systems.", "support state irrigation systems.", "support scaling irrigation systems.", "support scale irrigation 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 scale irrigation systems.") or ("support plans integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support scale irrigation systems.") OR ("support plans integration efforts.")).
• Removing quotes may allow a broader search: (( support scale irrigation systems. ) or ( support plans integration efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("support scale irrigation systems.") or ("support plans integration efforts."))*.