Websites with a pool of sentences

[HaraKiriBlade]

I don't even think this is the right place for this kind of question, but somewhere in this website Tdol posted a very useful website that has a huge collection of sentences and I bookmarked it, but now I lost it. The site also allows users to match their phrases and idioms against its sentence collection, thus giving the users a rough idea on how often the queried phrases are used in the world of English. I know this kind of sentence collection for academic use has a collective name for it because Tdol mentioned it, but it just totally flew off my mind. If anyone knows what I'm talking about, could you post the link for it, or at least tell me what it's called so that I can google it? Thank you very much.
- HKB

[Tdol]

Try bookmarking it this time: [DAVIES] Variation in English Words and Phrases (VIEW)

[Tdol]

PS the database is a corpus and the programs that query them are concordancers.