Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petruiiov (Expand Search), petroiiov (Expand Search)
petruuiiv » peteruuiiv (Expand Search), petruuuiiv (Expand Search), petrouuiiv (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petruuiov » peteruuiov (Expand Search), petruuuiov (Expand Search), petrouuiov (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 ((peteriiv OR petruuiiv) OR ((petri OR ((petriiov OR peteriiov) OR petruuiov)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriiv OR petruuiiv) OR ((petri OR ((petriiov OR peteriiov) OR petruuiov)) OR petr)) o.s.*".