Perhaps you should try some spelling variations:
"supply crowd integration efforts." » "supply crowd international efforts.", "supply crowd conservation efforts.", "supply grid integration efforts.", "supply trade integration efforts.", "supply chain integration efforts.", "supply growth integration efforts.", "supply cost integration efforts.", "supply how integration efforts."
"support low irrigation schemes." » "support low irrigation scheme.", "support low irrigation systems.", "support led irrigation schemes.", "support flood irrigation schemes.", "support local irrigation schemes.", "support from irrigation schemes.", "support tool irrigation schemes."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support low irrigation schemes.") or ("supply crowd integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support low irrigation schemes.") OR ("supply crowd integration efforts."))*.
• Removing quotes may allow a broader search: (( support low irrigation schemes. ) or ( supply crowd integration efforts. ))*.