Perhaps you should try some spelling variations:
petroiiuov » peteroiiuov (Expand Search), petrioiiuov (Expand Search), petrooiiuov (Expand Search)
petrioiiuov » peterioiiuov (Expand Search), petriioiiuov (Expand Search), petroioiiuov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petroiov (Expand Search)
petruo » peteruo (Expand Search), petriuo (Expand Search), petrouo (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petroiiuov OR petrioiiuov) OR (((petru OR petriov) OR (petruo OR peteruuo)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petroiiuov OR petrioiiuov) OR (((petru OR petriov) OR (petruo OR peteruuo)) OR petr)) o.s.*".