Perhaps you should try some spelling variations:
"acta slovenia estonia" » "malta slovenia estonia", "area slovenia estonia", "art slovenia estonia"
"acta slavica estonia" » "anna slavina estonia", "art slavic estonia", "et slavica estonia"
"et latvia estonia" » "_ latvia estonia", "et latina estonia", "1 latvia estonia"

Try widening your search to All Fields.

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 latvia estonia"))) OR ("acta slovenia estonia"))) OR ("balto slavic estonia")).
• Removing quotes may allow a broader search: (((((( acta slavica estonia ) or ( et latvia estonia ))) or ( acta slovenia estonia ))) or ( balto slavic estonia )).
• Adding a wildcard symbol may retrieve word variants: (((((("acta slavica estonia") or ("et latvia estonia"))) or ("acta slovenia estonia"))) or ("balto slavic estonia"))*.