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

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

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