I've observed something weird with Safari search. The search is unable to find words that are obviously present.
For example, I went to this page. I know that the phrase 'lincRNA' is present on the page, therefore I expect to be able to search for 'RNA' (which works), 'lincRNA' (which works) and 'ncRNA' (which fails).
Does anyone else have the same experience? Are you able to reproduce this?