Perhaps you should try some spelling variations:
peteroov » petrov (Expand Search)
petrioiiov » peterioiiov (Expand Search), petriioiiov (Expand Search), petruioiiov (Expand Search)
petroov » peteroov (Expand Search), petrioov (Expand Search), petruoov (Expand Search)
petroouov » peteroouov (Expand Search), petrioouov (Expand Search), petruoouov (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petruiu (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((((petrioiiov OR peteroiiov) OR (petroov OR peteroov)) OR petroouov) OR (petriu OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petrioiiov OR peteroiiov) OR (petroov OR peteroov)) OR petroouov) OR (petriu OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petrioiiov OR peteroiiov) OR (petroov OR peteroov)) OR petroouov) OR (petriu OR petr)) o.s.*.