Perhaps you should try some spelling variations:
"import data integration theories." » "import data integration theory.", "import data integration efforts.", "import data integration reforms.", "import trade integration theories.", "import _ integration theories.", "import data integrity theories.", "import duty integration theories."
"support urban integration through." » "support urban innovation through.", "support european integration through.", "support global integration through.", "support trade integration through.", "support carbon integration through.", "support grant integration through.", "report urban integration through."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("import data integration theories.") or ("support urban integration through."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("import data integration theories.") OR ("support urban integration through."))*.
• Removing quotes may allow a broader search: (( import data integration theories. ) or ( support urban integration through. ))*.