Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petruuov » petrov (Expand Search), peteruuov (Expand Search), petriuuov (Expand Search), petruuuov (Expand Search)
petruiv » peteruiv (Expand Search), petriuiv (Expand Search), petruuiv (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petriiiiiiov » peteriiiiiiov (Expand Search), petriiiiiiiov (Expand Search), petruiiiiiiov (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 ((petruiv OR petriiv) OR ((peterio OR (peteriov OR (petruuov OR petriiiiiiov))) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiv OR petriiv) OR ((peterio OR (peteriov OR (petruuov OR petriiiiiiov))) OR petr)) o.s.*".