Perhaps you should try some spelling variations:
"supply data irrigation schemes." » "supply data irrigation scheme.", "supply data irrigation systems.", "supply canal irrigation schemes.", "supply water irrigation schemes.", "supply spate irrigation schemes."
"supply case integration series." » "supply case integration theories.", "supply case integrating services.", "supply case integration schemes.", "supply care integration series.", "supply fare integration series.", "supply can integration series.", "supply cost integration series.", "supply chain integration series.", "supply curve integration series."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply case integration series.\") OR (\"supply data irrigation schemes.\"))~".
• Removing quotes may allow a broader search: (( supply case integration series. ) OR ( supply data irrigation schemes. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply case integration series.") OR ("supply data irrigation schemes."))*.