Perhaps you should try some spelling variations:
"heir apparental" » "her apparental", "heir apparent", "heir apparently", "heir aparentan", "heir apparente", "heir apparenteal", "heir apparentsal", "heir apaparenteal"
"heir parental" » "her parental", "heir parente", "heir parenteal", "heir parentsal", "heir aparenteal"
"heir parent" » "her parent", "heir parente", "heir parents", "heir aparente"
"huir aparece" » "huir parece"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("heir apparental") OR ("heir parental"))) OR ("huir aparece"))) OR ("heir parent"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"heir apparental\") OR (\"heir parental\"))) OR (\"huir aparece\"))) OR (\"heir parent\"))*".
• Removing quotes may allow a broader search: (((((( heir apparental ) OR ( heir parental ))) OR ( huir aparece ))) OR ( heir parent ))*.