Approximate search
Approximate Search in Freeplane
Starting with 1.2.x, Freeplane includes an 'approximate Search' feature which allows to find content (nodes, notes, or whatever) that do not exactly match the search term but allow some changes ("distance") between the search term and the content.
How to run (approximate) Search
Press Ctrl-F or select View->Toolbars->Filter toolbar to show the "filter/search" toolbar and enable Approximate searching by enabling the "Approximate" checkbox in the filter toolbar (Alt+A). Then you can enter a search term in the search box () and press Enter or click the "Find next" Button (icon with a blue right arrow in the filter toolbar) to start the search. If you want to check for equality (search term equals content as opposed to is contained in content), then you should change the default "Contains" in the search type combobox to "Is equal to".