Perhaps you should try some spelling variations:
"heir apparent" » "her apparent", "weir apparent", "herr apparent", "heir aparente", "heir parent"
"heir apparently" » "her apparently", "weir apparently", "herr apparently", "heir aparentely", "heir parently", "heir apparental", "heir apparent", "heir apparente"
"huir apparent" » "huir aparente", "huir parent"
"hair parently" » "hair parental", "hair parent", "hair parente"

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