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 time banking series." » "supply time banking services.", "supply time banking service.", "supply time banking crises.", "supply home banking series.", "supply sme banking series.", "supply state banking series.", "supply side banking series.", "supply sides banking series.", "supply pipes banking series."

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

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