GraphQL Query: Filtering not Working Properly

{
    allSeriesType(
      where: {
        _: { is_draft: false }
        isPublished: { eq: true }
        title:{matches:"master the basics"}
      }
      sort: [{ publishDate: DESC }]
    ) {
    title
    }
  }

{
  "data": {
    "allSeriesType": [
      {
        "title": "Learn the Routine: Dance Choreography"
      },
      {
        "title": "Master the Basics: HIIT"
      },
      {
        "title": "Master the Basics: Seated Dance Cardio"
      },
      {
        "title": "Master the Basics: Yoga"
      },
      {
        "title": "Master the Basics: Seated Strength Training "
      },
      {
        "title": "Master the Basics: Dance Cardio"
      },
      {
        "title": "Master the Basics: Strength Training"
      },
      {
        "title": "Master the Basics: Barre"
      },
      {
        "title": "Master the Basics: Cardio Boxing"
      },
      {
        "title": "The Gratitude Challenge: Yoga and Meditation"
      },
      {
        "title": "Master the Basics: Seated Yoga"
      }
    ]
  }
}

The Gratitude Challenge: Yoga and Meditation