Perhaps you should try some spelling variations:
donatism » dogmatism, donation, donating, donatosm, donationsm
donati » donato, donation
donatists » donatosts, donationsts, donations
donatosts » odonatists, donatist, donators

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 (donatists OR donatosts) ).
• The words AND, OR and NOT may confuse the search; try adding quotes: "( (donatism or donati) or (donatists OR donatosts) )".
• Adding a wildcard symbol may retrieve word variants: ( (donatism or donati) or (donatists OR donatosts) )*.