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

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