Perhaps you should try some spelling variations:
"support group integration efforts." » "support group international efforts.", "support group conservation efforts.", "support grid integration efforts.", "support run integration efforts.", "support through integration efforts.", "support from integration efforts.", "support grant integration efforts."
"supply crop irrigation system." » "supply crop irrigation systems.", "supply crop irrigation water.", "supply crop irrigation scheme.", "supply drip irrigation system.", "supply scale irrigation system.", "supply canal irrigation system.", "supply crowd irrigation system.", "supply curve irrigation system."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("support group integration efforts.") or ("supply crop irrigation system."))~.
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