Perhaps you should try some spelling variations:
petruiv » peteruiv (Expand Search), petriuiv (Expand Search), petruuiv (Expand Search)
petriuiv » peteriuiv (Expand Search), petriiuiv (Expand Search), petruiuiv (Expand Search)
petruuuo » peteruuuo (Expand Search), petriuuuo (Expand Search), petruuuuo (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petriuov » peteriuov (Expand Search), petriiuov (Expand Search), petruiuov (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 petriuiv) OR ((petruuuo OR (petriov OR (petrov OR petriuov))) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiv OR petriuiv) OR ((petruuuo OR (petriov OR (petrov OR petriuov))) OR petr)) o.s.*".