Perhaps you should try some spelling variations:
petrov » petro (Expand Search), peterov (Expand Search), petruov (Expand Search), petroov (Expand Search)
petruiw » peteruiw (Expand Search), petruuiw (Expand Search), petrouiw (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petruuo » peteruuo (Expand Search), petruuuo (Expand Search), petrouuo (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)
petris » peteris (Expand Search), petruis (Expand Search), petrois (Expand Search)
peteru » peter (Expand Search), 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 ((petrov OR petri) OR petruuo)) o) OR (((petr OR peteru) OR petris) _)). s.~".
• Adding a wildcard symbol may retrieve word variants: fop (((petruiw OR ((petrov OR petri) OR petruuo)) o) OR (((petr OR peteru) OR petris) _)). s.*.