Perhaps you should try some spelling variations:
"Supply syria irrigation schemes." » "Supply syria irrigation scheme.", "Supply syria irrigation systems.", "Supply africa irrigation schemes.", "Supply drip irrigation schemes.", "Supply surge irrigation schemes."
"supply trade integration series." » "supply trade integration services.", "supply trade interaction series.", "supply trade integration server.", "supply case integration series."
supply syria » supply africa, supply social, supply sierra

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("Supply syria irrigation schemes.") or ("supply trade integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("Supply syria irrigation schemes.") OR ("supply trade integration series.")).
• Removing quotes may allow a broader search: (( Supply syria irrigation schemes. ) or ( supply trade integration series. )).
• Adding a wildcard symbol may retrieve word variants: (("Supply syria irrigation schemes.") or ("supply trade integration series."))*.