Perhaps you should try some spelling variations:
"export ratio international efforts." » "export ratio international airports.", "export ratio international energy.", "export ratio international airport.", "export radio international efforts.", "export rate international efforts.", "export rates international efforts."
"support dam planning services." » "support dam banking services.", "support term planning services.", "support from planning services.", "support land planning services.", "support data planning services.", "support a planning services.", "support de planning services."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("export ratio international efforts.") or ("support dam planning services."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("export ratio international efforts.") OR ("support dam planning services.")).
• Removing quotes may allow a broader search: (( export ratio international efforts. ) or ( support dam planning services. )).
• Adding a wildcard symbol may retrieve word variants: (("export ratio international efforts.") or ("support dam planning services."))*.