firebase search

Stream<QuerySnapshot<Object?>> getSuggestion(String suggestion, context) {
    SellerModel? sellerModel =
        Provider.of<UserProvider>(context, listen: false).sellerModel;

    return seller_agreement_listing
        .orderBy('itemName', descending: false)
        .where('userId', isEqualTo: sellerModel!.uid)
        .where('itemName', isGreaterThanOrEqualTo: suggestion)
        .where('itemName', isLessThan: suggestion + 'z')
        // .limit(limitOfRetrievedData!)
        .snapshots();
  }