Perhaps you should try some spelling variations:
"suna latvian estonian" » "suna latvia estonia", "songs latvian estonian", "using latvian estonian"
"acta slavica estonian" » "acta latvia estonia", "acta place estonian", "anna slavina estonian", "art slavic estonian", "et slavica estonian"
"acta latvia's social" » "acta data's social", "acta latvia's digital", "acta namibia's social", "back latvia's social"
"acta latvian social" » "acta asian social", "acta adrian social", "acta lesbian social", "toth latvian social"

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