Perhaps you should try some spelling variations:
petriov » petrov (Expand Search), petruiov (Expand Search), petroiov (Expand Search), periov (Expand Search)
petruiw » petruuiw (Expand Search), petrouiw (Expand Search), peruiw (Expand Search)
petri » petrui (Expand Search), petroi (Expand Search), peri (Expand Search)
petr » petru (Expand Search), petro (Expand Search), per (Expand Search)
petruiv » petruuiv (Expand Search), petrouiv (Expand Search), peruiv (Expand Search)
peteru » petru (Expand Search), peters (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 (((petruiw OR (petriov OR petri)) o) OR (((petr OR (peteru OR peter)) OR petruiv) _)). s.~".
• Adding a wildcard symbol may retrieve word variants: fop (((petruiw OR (petriov OR petri)) o) OR (((petr OR (peteru OR peter)) OR petruiv) _)). s.*.