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"
"hair apparently" » "hair aparentely", "hair parently"
"weir apparently" » "weir aparentely", "weir parently", "weis apparently", "wei apparently", "weil apparently"

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