My ScrollView is not working

This screen is in landscape format and is a fragment that belongs to a ViewPager. I tried to change some attributes of ScrollView, but I did not succeed ... what happens? I have this screen in landscape and it does not scroll (nor the scroll appears), however in the preview of android studio I can scroll normally.

help plis

Here is the Activity code:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical">

  <android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/actionBarSize"
    app:tabIndicatorColor="@color/colorRed"
    app:tabSelectedTextColor="@color/colorWhite"
    app:tabBackground="@color/colorGreen"
    app:tabTextColor="@color/colorGrayLight"
    app:tabMaxWidth="0dp"
    app:tabGravity="fill"
    app:tabMode="fixed"/>

  <android.support.v4.view.ViewPager
    android:id="@+id/view_pager_classes"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/tab_layout"
    app:layout_constraintVertical_bias="0.0" />

</android.support.constraint.ConstraintLayout>

Here is the fragment code:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
android:layout_height="match_parent"
android:layout_width="match_parent"
android:fillViewport="true"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android" >

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/lilyt_teste"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="30sp"
            android:gravity="center"
            android:padding="10dp"/>

        <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:layout_marginBottom="5dp"/>

        <RadioButton
            android:id="@+id/radio_2min"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"/>

        <RadioButton
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:text=" 3 minutos"/>

        <RadioButton
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:text=" 4 minutos"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:layout_marginBottom="5dp"/>

        <RadioButton
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:text=" 2" />

        <RadioButton
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:text=" 1 "/>

        <RadioButton
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:text=" 3"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center">

        <Button
            android:id="@+id/bt_start_match_man"
            android:layout_width="match_parent"
            android:layout_marginStart="20dp"
            android:layout_marginEnd="20dp"
            android:layout_height="wrap_content"/>

    </LinearLayout>

</LinearLayout>

</ScrollView>