Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petruoiov » peteruoiov (Expand Search), petriuoiov (Expand Search), petruuoiov (Expand Search)
petruoiiov » peteruoiiov (Expand Search), petriuoiiov (Expand Search), petruuoiiov (Expand Search)
petroiv » peteroiv (Expand Search), petrioiv (Expand Search), petruoiv (Expand Search)
petruui » peteruui (Expand Search), petriuui (Expand Search), petruuui (Expand Search)
petroi » peteroi (Expand Search), petrioi (Expand Search), petruoi (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 ((((peteriov OR petruoiov) OR petruoiiov) OR petroiv) OR ((petruui OR petroi) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((peteriov OR petruoiov) OR petruoiiov) OR petroiv) OR ((petruui OR petroi) OR petr)) o.s.*".