Perhaps you should try some spelling variations:
"export private international ports." » "export private information ports.", "export finance international ports.", "export private international airports.", "export private international poverty.", "export private international efforts.", "export price international ports.", "exempt private international ports."
"supply good conservation efforts." » "supply wood conservation efforts.", "supply good conversation efforts.", "supply good conversations efforts.", "supply food conservation efforts.", "supply cold conservation efforts.", "supply crowd conservation efforts."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply good conservation efforts.") OR ("export private international ports."))~.
• Removing quotes may allow a broader search: (( supply good conservation efforts. ) or ( export private international ports. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply good conservation efforts.") or ("export private international ports."))*.