The Story Archive search system is a weird blend of Danbooru style tags, a search engine, and a programming language.
Example: I will be using The Observer Effect by d1x1lady as the story we will searching for.
Story tags
title:"The Observer Effect"
author:"d1x1lady"
rating:"m"
id:"151dcbf0" // the first 8 characters of a v4 uuid == 2,821,109,907,456 ids
fandom:["Harry Potter","Avengers"]
characters:["Harry P.","Iron Man/Tony S."]
parings:[["Harry P.","Iron Man/Tony S."]]
tags:["fem!harry","mod!harry","dimension travel","genderswap","genderswap!mtf"]
To search for this story any of the following could work.
title:*observer*
title:*_observer_*
title:"* observer *"
rating:m
rating:m -rating:k -rating:k+ -rating:t -rating:ma
-rating:k -rating:k+ -rating:t -rating:ma
id:"15*"
id:"*dc*"
fandom:harry_potter fandom:avengers
fandom:* NOT fandom:harry_potter fandom:avengers
harry_potter tony_stark
[harry_potter, tony_stark]
paring:[harry_potter, tony_stark]
fem!harry mod!harry
genderswap genderswap!mtf -genderswap!ftm fem!harry mod!harry