Perhaps you should try some spelling variations:
"heir apparent" » "huir apparent", "her apparent", "herr apparent", "heir aparente", "heir parent"
"heir apparently" » "huir apparently", "her apparently", "herr apparently", "heir aparentely", "heir parently", "heir apparental", "heir apparent", "heir apparente"
"hair apparently" » "hair aparentely", "hair parently", "hair apparental", "hair apparent", "hair apparente"
"weir parently" » "weis parently", "wei parently", "weil parently", "weir parental", "weir parent", "weir 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 ("hair apparently"))) OR ("weir parently"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"heir apparent\") OR (((((\"heir apparently\") OR (\"hair apparently\"))) OR (\"weir parently\"))))".
• Removing quotes may allow a broader search: (( heir apparent ) OR ((((( heir apparently ) OR ( hair apparently ))) OR ( weir parently )))).
• Adding a wildcard symbol may retrieve word variants: (("heir apparent") OR ((((("heir apparently") OR ("hair apparently"))) OR ("weir parently"))))*.