It seems you are looking for a guide to locate or understand the document described as (خلق أفعال العباد) by Imam al-Bukhari (author of Sahih al-Bukhari ). The number "39" may refer to a chapter or hadith number, but the correct title is Khalq Afʿāl al-ʿIbād ("The Creation of the Actions of the Servants").
Khalq Af‘āl al-‘Ibād is a foundational text for understanding early Sunni ‘aqidah. While an official English printed translation is still a gap in Islamic publishing, diligent online searching (Archive.org, Academia.edu) may yield a reader-produced PDF. For serious study, obtain the Arabic edition and work through it with a teacher or a reliable English summary. khalq af 39-al al-ibad english pdf
Research papers and summary PDFs detailing the book’s creed are available via Mission Islam . It seems you are looking for a guide