Perhaps you should try some spelling variations:
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petriuo » peteriuo (Expand Search), petriiuo (Expand Search), petruiuo (Expand Search)
petruiuo » peteruiuo (Expand Search), petriuiuo (Expand Search), petruuiuo (Expand Search)
petriui » peteriui (Expand Search), petriiui (Expand Search), petruiui (Expand Search)
petriiui » peteriiui (Expand Search), petriiiui (Expand Search), petruiiui (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 (petruov OR (((peteruo OR (petriuo OR petruiuo)) OR (petriui OR petriiui)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petruov OR (((peteruo OR (petriuo OR petruiuo)) OR (petriui OR petriiui)) OR petr)) o.s.*".