Perhaps you should try some spelling variations:
"heir apparent" » "her apparent", "weir apparent", "hair apparent", "heir apparently", "heir aparente", "heir apaparente", "heir apparental"
"heir aparentes" » "her aparentes", "weir aparentes", "hair aparentes", "heir aparente", "heir parente", "heir parientes", "heir aaparentees", "heir aparentales"
"heir parent" » "her parent", "weir parent", "hair parent", "heir aparente", "heir parental"
"huir aparentely" » "huir aparente", "huir apparently", "huir aaparenteely", "huir aparentalely"

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