Perhaps you should try some spelling variations:
"airport business information efforts." » "airport business innovation efforts.", "airport business transformation efforts.", "airport business informations ressorts.", "export business information efforts.", "support business information efforts.", "about business information efforts."
"import duty conservation efforts." » "import fuel conservation efforts.", "import situ conservation efforts.", "import bat conservation efforts.", "import duties conservation 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 conservation efforts.") OR ("airport business information efforts."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"import duty conservation efforts.\") OR (\"airport business information efforts.\"))".
• Removing quotes may allow a broader search: (( import duty conservation efforts. ) OR ( airport business information efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("import duty conservation efforts.") OR ("airport business information efforts."))*.