This was reported for the "Add Node" search functionality, but is relevant in other searches as well. So e.g. when searching for "Separate XYZ", typing "sep", then " " (with the intention to type "X" next) would clear the search field. Now use the same method (matching against all search words) as in F3 searching ('menu_search_update_fn') in other searches as well [searching IDs, property objects, finding nodes,...] This should give a much nicer search experience in general. Note: this does not touch other searches in the Dopesheet, Outliner, Filebrowser or User Preferences that have other search implementations. Maniphest Tasks: T78084 Differential Revision: https://developer.blender.org/D8232