Perhaps you should try some spelling variations:
"supply based integration schengen." » "supply based integration changed.", "supply based integration schemes.", "supply based integration challenges.", "supply based interaction schengen.", "supply based interactions schengen.", "supply based integrated schengen.", "supply case integration schengen.", "supplies based integration schengen.", "supply asia integration schengen."
"supply canal irrigation scheme." » "supply canal irrigation systems.", "supply scale irrigation scheme.", "supply canada irrigation scheme.", "supply annual irrigation scheme.", "supply china irrigation scheme."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply based integration schengen.") OR ("supply canal irrigation scheme."))~.
• Removing quotes may allow a broader search: (( supply based integration schengen. ) or ( supply canal irrigation scheme. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply based integration schengen.") or ("supply canal irrigation scheme."))*.