Perhaps you should try some spelling variations:
"heir apparent" » "her apparent", "hair apparent", "herr apparent", "heir aparente", "heir apaparente", "heir apparental"
"heir apparently" » "her apparently", "hair apparently", "herr apparently", "heir aparentely", "heir apaparentely", "heir apparentally"
"weir parent" » "weis parent", "wei parent", "weil parent", "weir aparente", "weir parental"
"huir aparentalalely" » "huir aaparentealalely", "huir aparentalalalely"

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