Perhaps you should try some spelling variations:
"supply de integration schemes." » "supply de integration schengen.", "supply de irrigation schemes.", "supply de integration regimes.", "supply die integration schemes.", "supply re integration schemes.", "supply une integration schemes.", "supply _ integration schemes.", "supply a integration schemes.", "supply 3 integration schemes."
"supply surge irrigation system." » "supply surge irrigation systems.", "supply surge irrigation water.", "supply surge irrigation scheme.", "supply large irrigation system.", "supply surface irrigation system.", "supply scale irrigation system.", "supply curve irrigation system.", "supply sources irrigation system.", "supply curves 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 de integration schemes.") or ("supply surge irrigation system."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply de integration schemes.") OR ("supply surge irrigation system."))*.
• Removing quotes may allow a broader search: (( supply de integration schemes. ) or ( supply surge irrigation system. ))*.