Perhaps you should try some spelling variations:
"support trade integration schemes." » "support trade integration schengen.", "support trade irrigation schemes.", "support trade integration regimes.", "support trainer integration schemes.", "export trade integration schemes.", "import trade integration schemes."
"supply syria irrigation systems." » "supply africa irrigation systems.", "supply drip irrigation systems.", "supply surge irrigation systems.", "supply social irrigation systems.", "supply sierra irrigation systems.", "supply syria 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: (("support trade integration schemes.") OR ("supply syria irrigation systems."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support trade integration schemes.\") OR (\"supply syria irrigation systems.\"))".
• Removing quotes may allow a broader search: (( support trade integration schemes. ) OR ( supply syria irrigation systems. )).
• Adding a wildcard symbol may retrieve word variants: (("support trade integration schemes.") OR ("supply syria irrigation systems."))*.