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