Perhaps you should try some spelling variations:
donatism » donatists, donating, donatus, donatosm
donati » donato
donation » donatoon
dogmatism » dogmatik, dogmatic, magmatism
dogmatisch » dogmatische, dogmatischen

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((donatism OR (donati OR donation)) OR (dogmatism OR dogmatisch))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((donatism or (donati or donation)) or (dogmatism OR dogmatisch))*".