Perhaps you should try some spelling variations:
"heir apparent" » "huir apparent", "weir apparent", "herr apparent", "heir aparente", "heir parent"
"her apparent" » "her aparente", "her parent"
"hair apparently" » "hair aparentely", "hair parently", "hair apparental", "hair apparent", "hair apparente"
"hair parently" » "hair parental", "hair parent", "hair parente"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("heir apparent") OR ("her apparent"))) OR ((("hair apparently") OR ("hair parently"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"heir apparent\") OR (\"her apparent\"))) OR (((\"hair apparently\") OR (\"hair parently\"))))*".
• Removing quotes may allow a broader search: (((( heir apparent ) OR ( her apparent ))) OR ((( hair apparently ) OR ( hair parently ))))*.