Perhaps you should try some spelling variations:
petriioov » peteriioov (Expand Search), petriiioov (Expand Search), petruiioov (Expand Search)
petriuoov » peteriuoov (Expand Search), petriiuoov (Expand Search), petruiuoov (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petroi » peteroi (Expand Search), petrioi (Expand Search), petruoi (Expand Search)
petruoi » peteruoi (Expand Search), petriuoi (Expand Search), petruuoi (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 (((petriioov OR (petriioov OR petriuoov)) OR petriiv) OR ((petroi OR petruoi) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriioov OR (petriioov OR petriuoov)) OR petriiv) OR ((petroi OR petruoi) OR petr)) o.s.*".