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

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