Perhaps you should try some spelling variations:
peteroui » peterdi (Expand Search)
petruuv » peteruuv (Expand Search), petriuuv (Expand Search), petruuuv (Expand Search)
petroi » peteroi (Expand Search), petrioi (Expand Search), petruoi (Expand Search)
petruuoi » peteruuoi (Expand Search), petriuuoi (Expand Search), petruuuoi (Expand Search)
petrioi » peterioi (Expand Search), petriioi (Expand Search), petruioi (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 peteruv) OR ((((petroi OR petruuoi) OR petrioi) OR peteroui) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruuv OR peteruv) OR ((((petroi OR petruuoi) OR petrioi) OR peteroui) OR petr)) o.s.*".