Perhaps you should try some spelling variations:
"import duty integration efforts." » "import duty international efforts.", "import duty conservation efforts.", "import dutch integration efforts.", "import data integration efforts.", "import why integration efforts.", "import duties integration efforts."
"support plans innovation through." » "support plan innovation through.", "support class innovation through.", "support lane innovation through.", "support land innovation through.", "support place innovation through.", "support pilots innovation through."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"import duty integration efforts.\") OR (\"support plans innovation through.\"))~".
• Removing quotes may allow a broader search: (( import duty integration efforts. ) OR ( support plans innovation through. ))~.
• Adding a wildcard symbol may retrieve word variants: (("import duty integration efforts.") OR ("support plans innovation through."))*.