<div class="row" style="margin-top: 20px;margin-bottom: 20px;">
  <div class="col-md-12">
    <input type="text" class="form-control" placeholder="Search..." />
  </div>
</div>

<div class="row">
  <div class="col-sm-6">
    <div class="panel panel-default" style="min-height: 150px;">
      <div class="panel-body">
        Banana<br>
        Hamburger<br>
        Pizza<br>
        Cheese<br>
        Tomato<br>
      </div>
    </div>
  </div>

  <div class="col-sm-6">
    <div class="panel panel-default" style="min-height: 150px;">
      <div class="panel-body">
        One<br>
        Two<br>
        three<br>
        four<br>
      </div>
    </div>
  </div>
 </div>

 <div class="row">
  <div class="col-sm-6">
    <div class="panel panel-default" style="min-height: 150px;">
      <div class="panel-body">
        Hey<br>
        Eggs<br>
        Stackoverflow<br>
      </div>
    </div>
  </div>

  <div class="col-sm-6">
    <div class="panel panel-default" style="min-height: 150px;">
      <div class="panel-body">
        Search<br>
        Me<br>
        Please<br>
        Dude<br>
      </div>
    </div>
  </div>
 </div>