How to select multiple values from a list block and perform search? I am a newbie to Drupal.

I have created a block that contains tags of the important topics on my website so how do I insert a search option for the user so that he can select multiple tags from that block and perform the search operation.
Assuming it's a view, you have to do a couple of things after constructing the view.


Click on the Filter Criteria as seen in the screenshot below:

Click on Expose this filter, Grouped filters and Allow multiple selections in this order (they will only appear if you click in this order). Please see the screenshot below: