Perhaps you should try some spelling variations:
"acta slovenia estonia" » "malta slovenia estonia", "area slovenia estonia", "art slovenia estonia"
"acta slavica estonia" » "anna slavina estonia", "art slavic estonia", "et slavica estonia"
"haiti latvia estonia" » "haiti zambia estonia"
"art latvia estonia" » "art latin estonia", "market latvia estonia"

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