{
  "Chat Prefix": "<color=#ACFA58>HTB'S Robot Admin </color>",
  "Show Chat Prefix": true,
  "Bot Icon (SteamID)": 76561198141669680,
  "Cooldown Between Auto Responses For User": "10s",
  "Global Cooldown Between Auto Responses": "2s",
  "Use Default Chat (0), Chat Plus (1), Better Chat (2)": 0,
  "Debug": false,
  "Allow Multiple Auto Responses": false,
  "Minimal Time Between Message And Answer": 1,
  "Maximal Time Between Message And Answer": 5,
  "Welcome Message": [
    "Welcome, {name}!",
    "Hello, dear {name}!",
    "Hello, {name}! Your IP: { ip }"
  ],
  "Welcome Message Enabled": true,
  "Joining Message": [
    "Welcome, {name} ({id}, { ip })!",
    "Hello, dear {name} ({id}, { ip })!",
    "{name} came from {country} ({countrycode})"
  ],
  "Leaving Message": [
    "Bye, {name} ({id}, { ip })!\nReason: {reason}",
    "{name} ({id}, { ip }) left the game. Reason: {reason}",
    "{name} from {country} ({countrycode}) just left the game!"
  ],
  "Joining Message Enabled": false,
  "Leaving Message Enabled": false,
  "Show Joining Message To Player That Joined": false,
  "Show Leaving Message To Player That Left": false,
  "Auto Messages": [{
      "Permission": "smartchatbot.messages",
      "Message Frequency": "25m",
      "Auto Messages": [{
        "Is Enabled": true,
        "Message": "use /info for Server rules and plugin commands"
      }]
    },
    {
      "Permission": "smartchatbot.messages",
      "Message Frequency": "120m",
      "Auto Messages": [{
        "Is Enabled": true,
        "Message": "Daily Restart at 4 PM PST"
      }]
    },
    {
      "Permission": "smartchatbot.messages",
      "Message Frequency": "130m",
      "Auto Messages": [{
        "Is Enabled": true,
        "Message": "Daily Shutdown for Maintanence at 3 AM till 4 AM PST"
      }]
    }
  ],
  "Auto Responses": [{
    "Permission": "smartchatbot.response",
    "Auto Responses": [{
        "Is Enabled": true,
        "Remove Message From Sender": false,
        "Send Response For Everyone (true) or Only For Sender (false)": true,
        "Triggers": [{
          "Percentage Of Contained Words": 0.75,
          "Regex Enabled": false,
          "Words": [
            "wipe"
          ]
        }],
        "Answers": [
          "Last Wipe 11-7-2019. Next Wipe 11-21-2019."
        ]
      },
      {
        "Is Enabled": true,
        "Remove Message From Sender": false,
        "Send Response For Everyone (true) or Only For Sender (false)": true,
        "Triggers": [{
          "Percentage Of Contained Words": 0.75,
          "Regex Enabled": false,
          "Words": [
            "admin"
          ]
        }],
        "Answers": [
          "If Admins are unavailable use Discord or a Veteran player may be able to help. Discord Invite *"
        ]
      },
      {
        "Is Enabled": true,
        "Remove Message From Sender": false,
        "Send Response For Everyone (true) or Only For Sender (false)": true,
        "Triggers": [{
          "Percentage Of Contained Words": 0.75,
          "Regex Enabled": false,
          "Words": [
            "backpack"
          ]
        }],
        "Answers": [
          "use /backpack to open or to BIND Backpack press F1 and type BIND B backpack.open"
        ]
      },
      {
        "Is Enabled": true,
        "Remove Message From Sender": false,
        "Send Response For Everyone (true) or Only For Sender (false)": true,
        "Triggers": [{
          "Percentage Of Contained Words": 0.75,
          "Regex Enabled": false,
          "Words": [
            "mymini",
            "nomini"
          ]
        }],
        "Answers": [
          "use /mymini to spawn minicopter or /nomini to despawn it. There is a 10 minute cooldown on minicopters"
        ]
      }
    ]
  }]
}

Because you set percentage of contained words to 0.75 means you need both, since 0.5 (one of two) isn't enough.