Perhaps you should try some spelling variations:
"support grid international comparisons." » "support grid international cooperation.", "support 3rd international comparisons.", "support third international comparisons.", "support build international comparisons.", "support agri international comparisons.", "support grant international comparisons.", "support group international comparisons."
"supply trade integration schemes." » "supply trade integration schengen.", "supply trade irrigation schemes.", "supply trade integration regimes.", "supply case integration 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 grid international comparisons.") or ("supply trade integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support grid international comparisons.") OR ("supply trade integration schemes.")).
• Removing quotes may allow a broader search: (( support grid international comparisons. ) or ( supply trade integration schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("support grid international comparisons.") or ("supply trade integration schemes."))*.