Perhaps you should try some spelling variations:
"heir apparent" » "her apparent", "weir apparent", "hair apparent", "heir aparente", "heir parent"
"heir apparently" » "her apparently", "weir apparently", "hair apparently", "heir aparentely", "heir parently"
"heir aparentely" » "her aparentely", "weir aparentely", "hair aparentely", "heir aparente", "heir aparentes"
"huir apparently" » "huir aparentely", "huir parently"

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