Search is a superpower, but it requires you to know what it is you are searching for and to be aware of the various synonyms that may be required to retrieve the information.
Using a filing system in addition to search enables you to give your thoughts a structure as well as being able to explore your work through serendipitous re-discovery.
Ideas should have some sort of secondary organisation system, such as files or tags, to enable you to explore rather than home-in on a specific document.
Search saves so much time that inconveniences are outweighed by its benefits