<div class="search-box forum-search-box">
    <form asp-route="Search" method="get">
        <div class="basic">
            <input type="text" class="search-box-text form-control" id="forums-small-searchterms" name="searchterms" placeholder="@T("Forum.SearchForumsTooltip")" />
            <button type="submit" class="btn btn-primary button-2 search-box-button">@T("Forum.SearchButton")</button>
        </div>
        <div class="advanced">
            @Html.RouteLink(T("Forum.AdvancedSearch").Text, "Search", new { advs = true }, new { title = T("Forum.AdvancedSearch").Text })
        </div>
    </form>
</div>