When creating extra properties and setting the value as a hyperlink, i.e. <a href="https://www.google.com/">Google</a>, it's not possible to search for the displayed value "Google":

details.key = key1 AND details.value = Google

It's necessary to search for the whole string in single quotes:

details.key = key1 AND details.value = '<a href="https://www.google.com/">Google</a>'

Or also escape special characters:

details.key = key1 AND details.value = "<a href=\"https://www.google.com/\">Google</a>"

It would be easier to search only for the displayed value and not the content value.