Compare multiple tags with same input string in DB search

[FollowerOfMammon]

Hello all.

I was looking at the tagnavi.config file (and also in the syntax manual in: http://www.rockbox.org/wiki/DataBase) in order to create a search query that compares the same input string (given from a prompt keyboard) with multiple tags in the DB.

For instance, If the user enters "Houses of the Holy" in the keyboard, the search result will contain the "Houses of the Holly" album, but also the "Houses of the Holly" track which is within a different album.

I tried putting multiple "" within the query (like in the following example), but that just opens the keyboard several times:
"album and or title" -> artist ? title ~ "" | album ~ "" -> album -> title = "fmt_title"

Does anybody know or can think of a way of doing this?

Thanks.