Perhaps you should try some spelling variations:
"import data integration theories." » "import data integration theory.", "import data integration through.", "import data integration efforts.", "import trade integration theories.", "import _ integration theories.", "import data integrity theories.", "import duty integration theories."
"supply codes banking crises." » "supply codes banking services.", "supply border banking crises.", "supply modern banking crises.", "supply open banking crises.", "supply costs banking crises.", "supply sides banking crises.", "supply cote banking crises."

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

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