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 can integration through." » "support can innovation through.", "support chain integration through.", "support care integration through.", "support urban integration through.", "support bank integration through.", "support a integration through.", "support tax 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 can integration through."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("import data integration theories.") OR ("support can integration through."))*.
• Removing quotes may allow a broader search: (( import data integration theories. ) or ( support can integration through. ))*.