How to map over multiple collections in firebase that starts with specific text?

Question

I'm trying to fetch muliple collection from firebase that starts with specific text, but i can't fetch them all, It just fetch only one collection this a picture of firebase collections that i want to fetch starts with 'Buyer-Cart'

const Uid = auth.currentUser.uid;
 
  useEffect(() => {
    
    fs.collection("Buyer-Cart "+Uid)
      .get()
      .then((Snapshot) => {
        const data = Snapshot.docs.map((doc) => {
          return doc.data();

        });

        setOrderIds(data);
      });
  }, []);