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)
petrui » peterui (Expand Search), petruui (Expand Search), petroui (Expand Search), petru (Expand Search)
petruiu » peteruiu (Expand Search), petruuiu (Expand Search), petrouiu (Expand Search), petruu (Expand Search)
petruoou » peteruoou (Expand Search), petruuoou (Expand Search), petrouoou (Expand Search)
petrov » peterov (Expand Search), petruov (Expand Search), petroov (Expand Search), petro (Expand Search)
petrooov » peterooov (Expand Search), petruooov (Expand Search), petroooov (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 petrui) OR petruiu) OR (petruoou OR (petrov OR petrooov)))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop (petr OR (((petri OR petrui) OR petruiu) OR (petruoou OR (petrov OR petrooov)))) _. s.*.