Perhaps you should try some spelling variations:
"supply costs international efforts." » "supply costs international airports.", "supply costs international energy.", "supply costs international airport.", "supply costea international efforts.", "supply counts international efforts.", "supply cases international efforts."
"supply curve integration regimes." » "supply curve immigration regimes.", "supply curve international regimes.", "supply curve integration regional.", "supply care integration regimes.", "supply burke integration regimes.", "supply curvello integration regimes."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply curve integration regimes.") OR ("supply costs international efforts."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply curve integration regimes.\") OR (\"supply costs international efforts.\"))".
• Removing quotes may allow a broader search: (( supply curve integration regimes. ) OR ( supply costs international efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("supply curve integration regimes.") OR ("supply costs international efforts."))*.