Perhaps you should try some spelling variations:
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petroiu » peteroiu (Expand Search), petruoiu (Expand Search), petrooiu (Expand Search)
petroou » peteroou (Expand Search), petruoou (Expand Search), petrooou (Expand Search)
petrov » peterov (Expand Search), petruov (Expand Search), petroov (Expand Search), petro (Expand Search)
petruov » peteruov (Expand Search), petruuov (Expand Search), petrouov (Expand Search)
petroov » peteroov (Expand Search), petruoov (Expand Search), petrooov (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 ((petri OR petroiu) OR (petroou OR ((petrov OR petruov) OR petroov)))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop (petr OR ((petri OR petroiu) OR (petroou OR ((petrov OR petruov) OR petroov)))) _. s.*.