Search for blog posts with labels with AND and OR filters

Searching For Blog Label or using it in the Links is very useful for the websites based on blogger. Here is a useful tip for you:

If you want to search for several labels and retrieve articles that contain all those labels or any label, It is possible in blogger.

If you want to find posts with LABEL1 AND LABEL2
<blog-URL>/search/?q=label:LABEL1+label:LABEL2.
or,
<blog-URL>search/label/LABEL1+LABEL2.

to find posts with any of those labels LABEL1 OR LABEL2:
<blog-URL>/search/?q=label:LABEL1|label:LABEL2