Perhaps you should try some spelling variations:
"supply vertical integration series." » "supply regional integration series.", "supply vertical integration services.", "supply vertical interaction series.", "supply vertical integration server.", "supply partial integration series.", "supply political integration series.", "supply technical integration series."
"supply canada irrigation schemes." » "supply canada irrigation scheme.", "supply canada irrigation systems.", "supply canal irrigation schemes.", "supply narmada irrigation schemes.", "supply managed 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: (("supply canada irrigation schemes.") or ("supply vertical integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply canada irrigation schemes.") OR ("supply vertical integration series.")).
• Removing quotes may allow a broader search: (( supply canada irrigation schemes. ) or ( supply vertical integration series. )).
• Adding a wildcard symbol may retrieve word variants: (("supply canada irrigation schemes.") or ("supply vertical integration series."))*.