How to properly use search on Discusions tab

Hello,

I was wondering if there’s a search syntax that can be used when searching discussions on Envato.
For instance:

  • specific term and
  • search within the results

would be very helpful.

I don’t want to ask something that’s already answered.

Also, is there a way to find all of my posts on all of discussions?

By ‘discussions’ I mean Discussions tab within an item (plugin, theme…).