Perhaps you should try some spelling variations:
"heir apparent" » "her apparent", "weir apparent", "herr apparent", "heir aparente", "heir apaparente", "heir apparental"
"heir aparentalalely" » "her aparentalalely", "weir aparentalalely", "herr aparentalalely", "heir aaparentealalely", "heir aparentalalalely"
"huir apparently" » "huir aparentely", "huir apaparentely", "huir apparentally"
"hair parent" » "hair aparente", "hair parental"

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 ("huir apparently"))) OR ("heir aparentalalely"))) OR ("hair parent"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"heir apparent\") OR (\"huir apparently\"))) OR (\"heir aparentalalely\"))) OR (\"hair parent\"))*".
• Removing quotes may allow a broader search: (((((( heir apparent ) OR ( huir apparently ))) OR ( heir aparentalalely ))) OR ( hair parent ))*.