Perhaps you should try some spelling variations:
"import business international efforts." » "import businesses international efforts.", "import business interactions efforts.", "import business integration efforts.", "import business international airports.", "import business international energy.", "import business international airport.", "airport business international efforts.", "port business international efforts.", "importing business international efforts."
"import duty integration efforts." » "import duty conservation efforts.", "import data integration efforts.", "import south integration efforts.", "import deep integration efforts.", "import duties integration efforts."

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

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