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

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 parently\") OR (\"heir apparently\"))))) OR (\"weir apparent\"))~".
• Removing quotes may allow a broader search: (((( heir apparent ) OR ((( heir parently ) OR ( heir apparently ))))) OR ( weir apparent ))~.
• Adding a wildcard symbol may retrieve word variants: (((("heir apparent") OR ((("heir parently") OR ("heir apparently"))))) OR ("weir apparent"))*.