Perhaps you should try some spelling variations:
"taxation international conference series." » "action international conference series.", "education international conference series.", "canadian international conference series.", "taxation international reference series."
"global investment financing series." » "global investment banking series.", "global government financing series.", "global investment planning series.", "social investment financing series.", "global investment financial series.", "global investment financing sources.", "global investment finance series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("taxation international conference series.") or ("global investment financing series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("taxation international conference series.") OR ("global investment financing series."))*.
• Removing quotes may allow a broader search: (( taxation international conference series. ) or ( global investment financing series. ))*.