Read this blog on Magento 2 custom catalog search for more information.

In this post, I will introduce how to configure Search or Catalog search in Magento 2. Setting the minimum and the maximum number of characters that can be submitted in a query that is an important part when you adjust the Catalog Search configuration. For example you can choose the minimum number 1 and the maximum number 148.
magento 2 custom catalog search

How to configure Magento 2 catalog search

To configure catalog search in Magento 2, follow the steps below:

  • On the Admin panel, click Stores. In the Settings section, select Configuration.
  • Select Catalog under Catalog in the panel on the left
  • Open the Catalog Search section, and continue with following:
    • In the Minimal Query Length field, enter the number to set minimum characters that can be submitted in a query
    • In the Maximum Query Length field, enter the number to set maximum characters that can be submitted in a query
  • To limit the length and word count of search query text, do the following:
    • Set Minimal Query Length to the minimum number of characters that can be submitted in a query.
    • Set Maximum Query Length to the maximum number of characters that can be submitted in a query.
  • When complete, click Save Config

Magento 2 catalog search alternative

Alternatively, you can use a plugin to do the same. On Magento 2,  all that you need to do is install the ExpertRec site search extension from the marketplace. This will automatically replace your default search and add a search bar that has facets inbuilt. You can do further customization in the Expertrec Dashboard that comes along with the plugin. 

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