Perhaps you should try some spelling variations:
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petruiu (Expand Search), petri (Expand Search), petru (Expand Search), petris (Expand Search)
petroou » peteroou (Expand Search), petrioou (Expand Search), petruoou (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search), petro (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petruiov » peteruiov (Expand Search), petriuiov (Expand Search), petruuiov (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 (petriu OR (petroou OR ((petrov OR petruov) OR petruiov)))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop (petr OR (petriu OR (petroou OR ((petrov OR petruov) OR petruiov)))) _. s.*.