Perhaps you should try some spelling variations:
"former sovier republic." » "former sovier republics.", "former soviet republics.", "former workers republic.", "farmer soldier republic.", "former owner republic."
"former soviet republic." » "former soviet republics.", "former sovier republics."
"former korea republic." » "over korea republic.", "former power republic.", "former shore republic."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("former sovier republic.") OR ("former soviet republic."))) or ("former korea republic."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("former sovier republic.") OR ("former soviet republic."))) OR ("former korea republic."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"former sovier republic.\") OR (\"former soviet republic.\"))) or (\"former korea republic.\"))*".
• Removing quotes may allow a broader search: (((( former sovier republic. ) OR ( former soviet republic. ))) or ( former korea republic. ))*.