Perhaps you should try some spelling variations:
"heir apparent" » "her apparent", "weir apparent", "hair apparent", "heir apparently", "heir aparente", "heir apaparente", "heir apparental"
"heir parent" » "her parent", "weir parent", "hair parent", "heir aparente", "heir parental"
"huir aparentale" » "huir aparente", "huir parental", "huir parentales", "huir aaparenteale", "huir aparentalale"
"huir aaparenteale" » "huir aaaparenteeale", "huir aaparentaleale"

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