Perhaps you should try some spelling variations:
petr » petri (Expand Search), petru (Expand Search), petro (Expand Search)
petriu » petriiu (Expand Search), petruiu (Expand Search), petroiu (Expand Search), petri (Expand Search), petru (Expand Search), petris (Expand Search)
petruoou » petriuoou (Expand Search), petruuoou (Expand Search), petrouoou (Expand Search)
petruuoou » petriuuoou (Expand Search), petruuuoou (Expand Search), petrouuoou (Expand Search)
petrov » petriov (Expand Search), petruov (Expand Search), petroov (Expand Search), petro (Expand Search)
petruiov » petriuiov (Expand Search), petruuiov (Expand Search), petrouiov (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 peter) OR (petriu OR ((petruoou OR petruuoou) OR (petrov OR petruiov)))) _. s.~".
• Adding a wildcard symbol may retrieve word variants: fop ((petr OR peter) OR (petriu OR ((petruoou OR petruuoou) OR (petrov OR petruiov)))) _. s.*.