Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
peteroiv » petrov (Expand Search), peterdi (Expand Search)
petrooiov » peterooiov (Expand Search), petriooiov (Expand Search), petruooiov (Expand Search)
petruiiov » peteruiiov (Expand Search), petriuiiov (Expand Search), petruuiiov (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 petrooiov) OR petruiiov) OR peteroiv) OR ((petruui OR petroi) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((peteriov OR petrooiov) OR petruiiov) OR peteroiv) OR ((petruui OR petroi) OR petr)) o.s.*".