Perhaps you should try some spelling variations:
"acta slavica estonian" » "acta latvia estonia", "acta latvian estonian", "acta place estonian", "anna slavina estonian", "art slavic estonian", "et slavica estonian"
"next elite estonian" » "next like estonian", "next place estonian", "next site estonia", "next white estonian"
"next life estonia" » "next site estonia", "next police estonia", "next chile estonia", "context life estonia"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("acta slavica estonian") OR ((("next elite estonian") OR ("next life estonia")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"acta slavica estonian\") or (((\"next elite estonian\") OR (\"next life estonia\"))))".
• Removing quotes may allow a broader search: (( acta slavica estonian ) or ((( next elite estonian ) OR ( next life estonia )))).
• Adding a wildcard symbol may retrieve word variants: (("acta slavica estonian") or ((("next elite estonian") OR ("next life estonia"))))*.