Perhaps you should try some spelling variations:
"acta slavica estonian" » "acta latvia estonia", "acta latvian estonian", "anna slavina estonian", "art slavic estonian", "et slavica estonian"
"next place estonian" » "next place estonia", "next large estonian", "next elite estonian", "next please estonian", "next page estonian"
"next phase estonian" » "next phase newtonian", "next ajas estonian", "next place 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 slavica estonian") OR ((("next place estonian") OR ("next phase estonian")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"acta slavica estonian\") or (((\"next place estonian\") OR (\"next phase estonian\"))))".
• Removing quotes may allow a broader search: (( acta slavica estonian ) or ((( next place estonian ) OR ( next phase estonian )))).
• Adding a wildcard symbol may retrieve word variants: (("acta slavica estonian") or ((("next place estonian") OR ("next phase estonian"))))*.