There may be a more elegant tool, but you may want to try the good old Site-search on Google..
Syntax: site: <URL of the FB Page> <Search Keyword>
Below is a screenshot of the query that you are interested in:
Tags: Facebook
There may be a more elegant tool, but you may want to try the good old Site-search on Google..
Syntax: site: <URL of the FB Page> <Search Keyword>
Below is a screenshot of the query that you are interested in:
Tags: Facebook