As soon as the indexed documents contain lingo of any kind you need hybrid search IMHO.
Additionally, if you can add conditional fuzzy matching into the mix so fat fingering something still yields a workable result is even better for UX (something along the lines of "the results from the tf-idf search are garbage, let's redo the search with fuzzy matching this time).
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As soon as the indexed documents contain lingo of any kind you need hybrid search IMHO.
Additionally, if you can add conditional fuzzy matching into the mix so fat fingering something still yields a workable result is even better for UX (something along the lines of "the results from the tf-idf search are garbage, let's redo the search with fuzzy matching this time).