Perhaps you should try some spelling variations:
petruiv » peteruiv (Expand Search), petriuiv (Expand Search), petruuiv (Expand Search)
petriouiv » peteriouiv (Expand Search), petriiouiv (Expand Search), petruiouiv (Expand Search)
petruoi » peteruoi (Expand Search), petriuoi (Expand Search), petruuoi (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petrouoov » peterouoov (Expand Search), petriouoov (Expand Search), petruouoov (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petruiv OR petriouiv) OR ((petruoi OR (petrov OR petrouoov)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiv OR petriouiv) OR ((petruoi OR (petrov OR petrouoov)) OR petr)) o.s.*".