Perhaps you should try some spelling variations:
"acta latvian estonian" » "acta latvia estonia", "suna latvian estonian", "toth latvian estonian"
"acta latvian social" » "acta latvia's social", "acta asian social", "acta adrian social", "suna latvian social", "toth latvian social"

You may be able to get more results by adjusting your search query.

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