自定义的搜索“22319E”搜索不到22319 E和22319 EK

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<td width="8%" height="70">&nbsp;&nbsp;型号:</td>

<td width="10%"><input class="y_textc" name="xxdh" type="text" placeholder="请输入轴承型号" id="searchk" value=""></td>  

<td width="8%">&nbsp;&nbsp;内径:</td>

<td width="10%"><input class="y_textc" name="neijingmm" type="text" placeholder="请输入轴承内径" id="searchnj" value=""></td>

<td></td>

<td width="8%">&nbsp;&nbsp;外径:</td>

<td width="10%"><input class="y_textc" name="waijingmm" type="text" placeholder="请输入轴承外径" id="searchwj" value=""></td>

<td></td>

<td width="8%">&nbsp;&nbsp;厚度:</td>

<td width="10%"><input class="y_textc" name="houdumm" type="text" placeholder="请输入轴承厚度" id="searchnj" value=""></td>

<td width="10%">

<input type="submit" class="y_textd"> </td>

</tr>

</tbody></table>