Perhaps you should try some spelling variations:
petr » petri (Expand Search), petru (Expand Search), petro (Expand Search)
petrou » petriou (Expand Search), petruou (Expand Search), petroou (Expand Search), petru (Expand Search), petro (Expand Search), petrow (Expand Search)
petrov » petriov (Expand Search), petruov (Expand Search), petroov (Expand Search), petro (Expand Search)
petruov » petriuov (Expand Search), petruuov (Expand Search), petrouov (Expand Search)
petruuov » petriuuov (Expand Search), petruuuov (Expand Search), petrouuov (Expand Search)
peteri » peterdi (Expand Search), petri (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 ((((petr OR petrou) OR peter) OR peteri) OR (petrov OR (petruov OR petruuov))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop ((((petr OR petrou) OR peter) OR peteri) OR (petrov OR (petruov OR petruuov))) _. s.*.