Search the node using keyword
You can not include search box generated by custom search module into views, but you can add exposed filter into views to implement search functionality in the views.

To implement search functionality in the views


Add "field" in the filter and choose "Contains" from the operator list
Exposed field in the filer


It will display a search box for that field in the views and work nicely for searching. Moreover, you can enhance its display by using views tpl and control where to display this views block.