Perhaps you should try some spelling variations:
"from latvian estonian" » "from latvia estonia", "from latvian social", "from latvia estonian", "from latin estonian", "from avian estonian"
"acta slavica estonia" » "acta latvia estonia", "acta slovenia estonia", "anna slavina estonia", "art slavic estonia"
"et slavica estonia" » "et latvia estonia", "et slovenia estonia", "res slavica estonia", "_ slavica 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 estonia") OR ("et slavica estonia"))) OR ("from latvian estonian")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"acta slavica estonia\") OR (\"et slavica estonia\"))) or (\"from latvian estonian\"))".
• Removing quotes may allow a broader search: (((( acta slavica estonia ) OR ( et slavica estonia ))) or ( from latvian estonian )).
• Adding a wildcard symbol may retrieve word variants: (((("acta slavica estonia") OR ("et slavica estonia"))) or ("from latvian estonian"))*.