Perhaps you should try some spelling variations:
petriiov » petrov (Expand Search)
petruiov » petrov (Expand Search), pentruiov (Expand Search), petriiov (Expand Search)
peteriov » petrov (Expand Search)
petruuv » pentruuv (Expand Search), petriuv (Expand Search)
petruio » pentruio (Expand Search), petriio (Expand Search)
petruuio » pentruuio (Expand Search), petriuio (Expand Search)
petru » pentru (Expand Search), petri (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petruuv OR ((((petriiov OR petruiov) OR peteriov) OR (petruio OR petruuio)) OR petru)) o.s.~".
• Adding a wildcard symbol may retrieve word variants: fop (petruuv OR ((((petriiov OR petruiov) OR peteriov) OR (petruio OR petruuio)) OR petru)) o.s.*.