Is it possible to search for multiple content types (products, categories, blogs, articles etc) in Magento? I got the search result for products only. I want to display products when to search for the category name.
No. The default Magento search is for catalog products only.
If you need extended search functionality, you should have a look at other Magento extensions and search engines.
Usually Magento doesn’t have this possibility but there are all conditions for that. There are a lot of modules. They can do it. Here is a small list:
If you decide to write own similar module, you must know that it is very long process (few weeks). I used one of these modules.
P.S.: If you decide to install one of third-party modules, you should consult the developers how many fit the selected modules to your requirements. Do not spend time and money on something that will not work for you.