Perhaps you should try some spelling variations:
"supply social integration efforts." » "supply social international efforts.", "supply social conservation efforts.", "supply global integration efforts.", "supply financial integration efforts.", "supply regional 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 from irrigation system.", "supply europe 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: (("supply crop irrigation system.") OR ("supply social integration efforts."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply crop irrigation system.\") OR (\"supply social integration efforts.\"))*".
• Removing quotes may allow a broader search: (( supply crop irrigation system. ) OR ( supply social integration efforts. ))*.