It is not possible to exactly what you want, but we can do something similar with this approach:
Go to your search_page_html macro and edit you result loop like this:
<n.results.loop.current_node.>
<n.if.contains_substring string="[n.current_node.when_created.custom_format format='dd-MMM-yyyy'/]" substring='Nov'>
<then><n.search_result_row/></then>
</n.if.contains_substring>
</n.results.loop.current_node.>
You have to replace the substring "Nov" for the searched one. This is just a suggestion of which direction you should code this feature.
I will try to improve it to you if you need it when I have time.