Perhaps you should try some spelling variations:
"acta latvian estonian" » "acta latvian social", "suna latvian estonian", "toth latvian estonian", "haiti latvian estonian"
"et slavica estonian" » "et place estonian", "res slavica estonian", "_ slavica estonian"
"acta latvia estonia" » "haiti latvia 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 latvia estonia") OR ("acta latvian estonian"))) OR ("et slavica estonian")).
• Removing quotes may allow a broader search: (((( acta latvia estonia ) or ( acta latvian estonian ))) or ( et slavica estonian )).
• Adding a wildcard symbol may retrieve word variants: (((("acta latvia estonia") or ("acta latvian estonian"))) or ("et slavica estonian"))*.