The keyword search syntax described at the link provided from the bagnon entry at add-on repositories (Curse, etc) no longer works.
https://github.com/Jaliborc/LibItemSearch-1.0/wiki/Search-Syntax

For instance, I was in the habit of identifying quest rewards in my bags by using the "bop" keyword. This no longer highlights any items in my bag, even though I have bop items in my bags. Neither the "soulbound" nor "bound" keywords work either. The "quest" keyword seems to work.

I see another issue describing this behavior has been marked closed, but this specific issue was not addressed. Can you provide updated search syntax documentation or fix the keyword search? Thanks