Perhaps you should try some spelling variations:
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
petruuov » petrov (Expand Search), peteruuov (Expand Search), petriuuov (Expand Search), petruuuov (Expand Search)
peteriiv » peterdi (Expand Search)
petrv » peterv (Expand Search), petriv (Expand Search), petruv (Expand Search)
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (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 (((((petriiov OR petruuov) OR peteriiv) OR petrv) OR petruv) OR (petero OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((((petriiov OR petruuov) OR peteriiv) OR petrv) OR petruv) OR (petero OR petr)) o.s.*".