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