Perhaps you should try some spelling variations:
"support trade integration schemes." » "support trade integration schengen.", "support trade integration regimes.", "support trade integration some.", "support trainer integration schemes.", "export trade integration schemes.", "import trade integration schemes."
"support grid irrigation schemes." » "support grid irrigation scheme.", "support grid irrigation systems.", "support grain irrigation schemes.", "support drip irrigation schemes.", "support gray irrigation schemes.", "support agri irrigation schemes.", "support grant irrigation schemes.", "support group 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: (("support trade integration schemes.") OR ("support grid irrigation schemes."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support trade integration schemes.\") OR (\"support grid irrigation schemes.\"))*".
• Removing quotes may allow a broader search: (( support trade integration schemes. ) OR ( support grid irrigation schemes. ))*.