The transcripts on the Bible Framework Applied website are now searchable.
You can search the entire site for a word, words, or a phrase by simply typing them into the Search keyword box and selecting between "All Words", "Any Words" or "Exact Phrase" followed by clicking the search button.
Once the application generates a list of lessons where your word, words, or phrase was used, click on the desired lesson, open the READ link and search the transcript by pressing Ctrl-F (Cmd-F on the Mac) and typing the word, words, or phrase you searched for.
Depending on what browser you use, the results will typically highlight the searched word(s) in the text of the transcript.