Step 1 : Login to your Blogger Account and go to Layout section of your Blog.
If you don’t have any Labels widget then add it by clicking ADD Page ELEMENT link in the Page. Then navigate to EDIT HTML subtab and Check EXPAND WIDGETS box.
Step 2 :
Now search for this Line.
<b:widget id=’Label1′ locked=’false’ title=’Labels’ type=’Label’>
Now below this line , you will find this code
<b:loop values=’data:labels’ var=’label’>
<li>
<b:if cond=’data:blog.url == data:label.url’>
<data:label.name/>
<b:else/>
<a expr:href=’data:label.url’><data:label.name/></a>
</b:if>
(<data:label.count/>)
</li>
</b:loop>
Now replace the above code with the following code.
<script type=’text/javascript’>
var labelnum = 0;
<b:loop values=’data:labels’ var=’label’>
if (<data:label.count/> > 5) {
document.write("<li><a expr:href=’data:label.url + “?max-results=20“‘
rel=’nofollow’><span><data:label.name/></span></a>(<data:label.count/>)</li>");
}
</b:loop>
</script>
It should look like this

Show only Labels with specific number of posts
In the above script edit the text in red to show Labels which contains more than 5 post. Just change number of post to show more than 5.
for example : I have chosen number 5 , then Labels which contains more than 5 posts will be shown and other labels will be hidden.
Edit the text in red to show only specific number of posts in Labels Page.



