Perhaps you should try some spelling variations:
"acta slavica estonia" » "acta latvia estonia", "acta slovenia estonia", "et slavica estonia"
"anna slavina estonia" » "anna slovenia estonia", "anna latvia estonia", "anna spain estonia", "anna golovina estonia", "anna karina estonia", "anna lina estonia"
"art slavic estonia" » "art latvia estonia", "art spain estonia", "art slovenia estonia", "east slavic estonia", "art static estonia", "balto slavic 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 ("anna slavina estonia"))) OR ("art slavic estonia")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"acta slavica estonia\") OR (\"anna slavina estonia\"))) or (\"art slavic estonia\"))".
• Removing quotes may allow a broader search: (((( acta slavica estonia ) OR ( anna slavina estonia ))) or ( art slavic estonia )).
• Adding a wildcard symbol may retrieve word variants: (((("acta slavica estonia") OR ("anna slavina estonia"))) or ("art slavic estonia"))*.