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 state banking series." » "supply state banking services.", "supply state banking service.", "supply state banking crises.", "supply state planning series.", "supply state banks series.", "supply state bank series.", "supply system banking series.", "support state banking series.", "supply side 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 state banking series.") or ("import data integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply state banking series.") OR ("import data integration theories."))*.
• Removing quotes may allow a broader search: (( supply state banking series. ) or ( import data integration theories. ))*.