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)
petruooi » peteruooi (Expand Search), petruuooi (Expand Search), petrouooi (Expand Search)
petriov » peteriov (Expand Search), petruiov (Expand Search), petroiov (Expand Search)
petrov » peterov (Expand Search), petruov (Expand Search), petroov (Expand Search), petro (Expand Search)
petriuov » peteriuov (Expand Search), petruiuov (Expand Search), petroiuov (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 petruooi)) OR (petriov OR (petrov OR petriuov))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop (((petr OR petri) OR (petrui OR petruooi)) OR (petriov OR (petrov OR petriuov))) _. s.*.