Perhaps you should try some spelling variations:
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petruuo » peteruuo (Expand Search), petriuuo (Expand Search), petruuuo (Expand Search)
petruiiuo » peteruiiuo (Expand Search), petriuiiuo (Expand Search), petruuiiuo (Expand Search)
petruuiiuo » peteruuiiuo (Expand Search), petriuuiiuo (Expand Search), petruuuiiuo (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (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 ((peteriv OR petriiv) OR (((petruuo OR (petruiiuo OR petruuiiuo)) OR petruov) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriv OR petriiv) OR (((petruuo OR (petruiiuo OR petruuiiuo)) OR petruov) OR petr)) o.s.*".