.col-xs-4 .offset-xs-5
.col-xs-3.pull-xs-9

<div class="row">
    <div class="col-xs-4 offset-xs-5">
        <span>.col-xs-4.offset-xs-5</span>
    </div>
    <div class="col-xs-3 pull-xs-9">
        <span>.col-xs-3.pull-xs-9</span>
    </div>
</div>