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"
"acta latvian social" » "acta latvia's social", "acta asian social", "acta adrian social", "suna latvian social"
"toth latvian social" » "toth latvia's social", "toth asian social", "toth adrian social", "youth latvia social"

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 latvian social") OR ("toth latvian social")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"acta slavica estonian\") or (((\"acta latvian social\") OR (\"toth latvian social\"))))".
• Removing quotes may allow a broader search: (( acta slavica estonian ) or ((( acta latvian social ) OR ( toth latvian social )))).
• Adding a wildcard symbol may retrieve word variants: (("acta slavica estonian") or ((("acta latvian social") OR ("toth latvian social"))))*.