Using Wildcards in Calibre Searches

Hello --

I need your help regarding the following Calibre Search syntax...

What I need to know is the syntax for using wildcards in Calibre searches in order to extract books that have part of a word in a column

For instance - if I wanted to search for a book that had "Faith" or "Faith & Gospel" in a column (track_cat) - how would I do this?

As a reference - In MS Excel - I could use "Faith*" in a search to find values with "Faith" and anything appended to "Faith" - such as "Faith & Gospel", "Faith in Churches", etc.

Similarly, what would be the Calibre wildcard(s) to use to find books that had a specific word anywhere in a given column?

Going back to my example above - what is the syntax that may have these values in the column "track_cat" - "American Faith", "Early Faith in the Church", "Necessity of Faith in the American Church", etc.

Again as an MS Excel reference - I would use "*Faith*"

Thank you

Michael