Perhaps you should try some spelling variations:
petriiov » petrov (Expand Search), peteriiov (Expand Search), petruiiov (Expand Search), petroiiov (Expand Search)
petriuuiv » peteriuuiv (Expand Search), petruiuuiv (Expand Search), petroiuuiv (Expand Search)
petruiuuiv » peteruiuuiv (Expand Search), petruuiuuiv (Expand Search), petrouiuuiv (Expand Search)
petriov » peteriov (Expand Search), petruiov (Expand Search), petroiov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (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 (((petriuuiv OR petruiuuiv) OR (petriov OR petriiov)) OR ((petri OR petero) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriuuiv OR petruiuuiv) OR (petriov OR petriiov)) OR ((petri OR petero) OR petr)) o.s.*".