<div id="MTIChipSearchField">
    <MudChipField T="string" Class="mud-chip-search" 
                  Values="@Values" ValuesChanged="@((value) => ChipValuesChangedAsync(value))"
                  Value="@SearchText" ValueChanged="@SearchValueChangeAsync" 
                  Placeholder="@Localizer["Search"]" Variant="Variant.Outlined"
                  ChipSize="Size.Medium" WrapChips="true" 
                  Delimiter="@Delimiter" ChipColor="Color.Default" 
                  ChipVariant="Variant.Text" Closeable="true" 
                  OnBlur="HandleBlurAsync">
    </MudChipField>

    @if (Values.Count > 0)
    {
        <div class="clear-chip">
            <MudTooltip Text="Clear All">
                <MudIconButton Icon="@Icons.Material.Outlined.Clear" OnClick="@ClearChipAsync"></MudIconButton>
            </MudTooltip>
        </div>
    }
</div>

private async Task ClearChipAsync()
{
    _isClearing = true;

    SearchText = string.Empty;
    Values.Clear();
    
    await ChipValuesChanged.InvokeAsync(Values);
    await SearchValueChanged.InvokeAsync(SearchText);
    await ClearChipValues.InvokeAsync();

    _isClearing = false;
    StateHasChanged();
}

• The Values collection and chips are cleared correctly.
• The method SearchValueChanged.InvokeAsync(SearchText) is called to update the MudChipField.

 
<div id="ChipSearchField">
    <MudChipField T="string" Class="mud-chip-search" Values="@Values" ValuesChanged="@((value) => ChipValuesChangedAsync(value))"
              Value="@SearchText" ValueChanged="@SearchValueChangeAsync" Placeholder="Search" Variant="Variant.Outlined"
                  ChipSize="Size.Medium" WrapChips="true" 
                  Delimiter="@Delimiter" ChipColor="Color.Default" ChipVariant="Variant.Text" Closeable="true">
</MudChipField>

@if (Values.Count > 0)
{
    <div class="clear-chip">
        <MudTooltip Text="ClearAll">
            <MudIconButton Icon="@Icons.Material.Outlined.Clear" OnClick="ClearChipAsync"></MudIconButton>
        </MudTooltip>
    </div>
}
</div>

@code {
    /// <summary>
 ///List Values of the chip control. 
 /// </summary>
 [Parameter]
 public List<string> Values { get; set; } = new List<string>();

 /// <summary>
 ///Input string for search filtering. 
 /// </summary>
 [Parameter]
 public string SearchText { get; set; } = string.Empty;

 /// <summary>
 /// Callback for the Search ValueChanged event.
 /// </summary>
 [Parameter]
 public EventCallback<string> SearchValueChanged { get; set; }

 /// <summary>
 /// Callback for the chip list ValuesChanged event. 
 /// </summary>
 [Parameter]
 public EventCallback<List<string>> ChipValuesChanged { get; set; }

 /// <summary>
 /// Should the text field be set to focus on render?
 /// </summary>
 [Parameter]
 public bool AutoFocus { get; set; } = false;

 /// <summary>
 /// Delimiter with a default value of space
 /// </summary>        
 public char Delimiter = ' ';

 /// <summary>
 /// Event when the clear button is clicked.
 /// </summary>
 private EventCallback<MouseEventArgs> ClearChipValues { get; set; }

 /// <summary>
 /// Event when the chip list changes.
 /// </summary>
 /// <param name="values">list value from the chipset.</param>
 /// <return>Task</return>
 private async Task ChipValuesChangedAsync(List<string> values)
 {
     Values = values.Select(v => v.Trim()).Where(v => !string.IsNullOrWhiteSpace(v)).Distinct().ToList();

     await ChipValuesChanged.InvokeAsync(Values);
 }

 /// <summary>
 /// Clear chip values
 /// </summary>  
 /// <return>Task</return>
 private async Task ClearChipAsync()
 {
     SearchText = string.Empty;
     Values.Clear();
     
     await ChipValuesChanged.InvokeAsync(Values);
     await SearchValueChanged.InvokeAsync(SearchText);
     await ClearChipValues.InvokeAsync();

 }

 /// <summary>
 /// Search input value changed.
 /// </summary>  
 /// <param name="value">Search Text Value.</param>
 /// <return>Task</return>
 private async Task SearchValueChangeAsync(string value)
 {
     SearchText = value;

     await SearchValueChanged.InvokeAsync(SearchText);           
 }
}

• The Values collection and chips are cleared correctly.
• The main issue is the search text value is not cleared.
• The method SearchValueChanged.InvokeAsync(SearchText) is called to update the MudChipField.