Complex sentence: In 1903 he enrolled himself at the University of Bologna, in the chemistry faculty, in order to pass through to the faculty of pharmaceutical chemistry in Florence, but he did not succeed in finishing his university career and had difficulty in finding his true calling.
Split into simpler sentences: In 1903 he enrolled himself at the University of Bologna, in the chemistry faculty, in order to pass through to the faculty of pharmaceutical chemistry in Florence. Campana did not succeed in finishing his university career and had difficulty in finding his true calling.