Perhaps you should try some spelling variations:
"hear apparent / early works to 1800" » "mean apparent / early works to 1800", "death apparent / early works to 1800", "great apparent / early works to 1800"
"heirs apparent / early works to 1800" » "hers apparent / early works to 1800", "hairs apparent / early works to 1800", "herrs apparent / early works to 1800"
"heir apparent / early works to 1800" » "her apparent / early works to 1800", "hair apparent / early works to 1800", "herr apparent / early works to 1800"

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: (((("hear apparent / early works to 1800") OR ((("heirs apparent / early works to 1800") OR ("very apparent / early works to 1800"))))) OR ("heir apparent / early works to 1800")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hear apparent / early works to 1800\") or (((\"heirs apparent / early works to 1800\") OR (\"very apparent / early works to 1800\"))))) or (\"heir apparent / early works to 1800\"))".
• Removing quotes may allow a broader search: (((( hear apparent / early works to 1800 ) or ((( heirs apparent / early works to 1800 ) OR ( very apparent / early works to 1800 ))))) or ( heir apparent / early works to 1800 )).
• Adding a wildcard symbol may retrieve word variants: (((("hear apparent / early works to 1800") or ((("heirs apparent / early works to 1800") OR ("very apparent / early works to 1800"))))) or ("heir apparent / early works to 1800"))*.