Perhaps you should try some spelling variations:
"acta slavica estonian" » "acta latvia estonia", "acta latvian estonian", "acta place estonian", "anna slavina estonian", "art slavic estonian"
"et slavica estonian" » "et latvia estonia", "et latvian estonian", "et place estonian", "res slavica estonian", "_ slavica estonian"
"youth latvia estonian" » "youth latvian estonian", "youth latvia estonia", "youth estonia estonian", "youth lately estonian"

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