Perhaps you should try some spelling variations:
peteroui » peterdi (Expand Search)
petruuv » peteruuv (Expand Search), petriuuv (Expand Search), petruuuv (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petruuiiov » peteruuiiov (Expand Search), petriuuiiov (Expand Search), petruuuiiov (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 ((petruuv OR (petriov OR petruuiiov)) OR ((petroi OR peteroui) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruuv OR (petriov OR petruuiiov)) OR ((petroi OR peteroui) OR petr)) o.s.*".