Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
peteruov » petrov (Expand Search)
petriv » peteriv (Expand Search), petriiv (Expand Search), petruiv (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petruiv » peteruiv (Expand Search), petriuiv (Expand Search), petruuiv (Expand Search)
petrou » peterou (Expand Search), petriou (Expand Search), petruou (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 (((petriv OR petriiv) OR petruiv) OR ((petrou OR (peteriov OR peteruov)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriv OR petriiv) OR petruiv) OR ((petrou OR (peteriov OR peteruov)) OR petr)) o.s.*".