Perhaps you should try some spelling variations:
"supply factors integration theories." » "supply factors integration theory.", "supply factors integration through.", "supply factors integration efforts.", "supply factor integration theories.", "supply facto integration theories.", "supply sector integration theories.", "supply functions integration theories."
"support deep irrigation schemes." » "support deep irrigation scheme.", "support deep irrigation systems.", "support drip irrigation schemes.", "support level irrigation schemes.", "support crop irrigation schemes.", "support does irrigation schemes.", "support them irrigation schemes.", "support data irrigation schemes."

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• Performing a fuzzy search may retrieve terms with similar spellings: (("supply factors integration theories.") or ("support deep irrigation schemes."))~.
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