Is it possible to use "OR" in a search string?

First time making a discussion, woo!

Pretty much as the title says. There's a decent list of parameters by which users can create a custom filter when searching for games. You can combine them together if desired. For example:

Example:
View giveaways for games released in the last 2 years, with a metascore of 75 or greater, with 500 or fewer entries, that require 20 points or fewer to enter...
https://www.steamgifts.com/giveaways/search?release_date_min=2019-09-09&metascore_min=75&entry_max=500&point_max=20

This method uses '&' (AND) to create a list of GAs that meet ALL of the specified conditions. But what about using something like '|' (OR) to display GAs that meet ANY of the specified conditions? Far as I can tell, I don't think I've seen any discussions on this topic lately, so I'm interested in others' thoughts on the matter.

Example: https://www.steamgifts.com/giveaways/search?entry_max=500|point_max=20

Note that this example currently doesn't filter out anything. If implemented, it would display all games that meet either or both conditions instead of only the games that meet both.

Thoughts?