Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petroiiv » petrov (Expand Search), peteroiiv (Expand Search), petrioiiv (Expand Search), petrooiiv (Expand Search)
petriuuov » peteriuuov (Expand Search), petriiuuov (Expand Search), petroiuuov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petroiv » peteroiv (Expand Search), petrioiv (Expand Search), petrooiv (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 ((petriuuov OR peteriov) OR ((petru OR (peteriov OR (petroiv OR petroiiv))) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuuov OR peteriov) OR ((petru OR (peteriov OR (petroiv OR petroiiv))) OR petr)) o.s.*".