Perhaps you should try some spelling variations:
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (Expand Search)
petriuuv » peteriuuv (Expand Search), petriiuuv (Expand Search), petruiuuv (Expand Search)
petriuiuov » peteriuiuov (Expand Search), petriiuiuov (Expand Search), petruiuiuov (Expand Search)
petruuo » peteruuo (Expand Search), petriuuo (Expand Search), petruuuo (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 (petruv OR petriuuv)) OR peterov) OR petriuiuov) OR (petruuo OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petriiov OR (petruv OR petriuuv)) OR peterov) OR petriuiuov) OR (petruuo OR petr)) o.s.*".