RANDOM FORTUNE:

Snacktrek, n.: The peculiar habit, when searching for a snack, of constantly returning to the refrigerator in hopes that something new will have materialized.
          -- Rich Hall, "Sniglets"

Integrating Catfish With Thunar

Catfish is a nice, lightweight, file search GTK application, which can be integrated into Thunar using a custom action.

In Thunar, go to the edit menu and click on Configure custom actions, click the + button and set things up like so:

Thunar Catfish

The second tab needs to be set up too:

Thunar Catfish

Now in Thunar you can right-click on a folder and use search in it.

Catfish Slackbuild: http://slackbuilds.org/repository/14.2/desktop/catfish/