Perhaps you should try some spelling variations:
petruiiv » peteruiiv (Expand Search), petriuiiv (Expand Search), petruuiiv (Expand Search)
petruuiiv » peteruuiiv (Expand Search), petriuuiiv (Expand Search), petruuuiiv (Expand Search)
petriv » peteriv (Expand Search), petriiv (Expand Search), petruiv (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petruuuio » peteruuuio (Expand Search), petriuuuio (Expand Search), petruuuuio (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 ((petruiiv OR petruuiiv) OR (((peteroi OR (petriv OR petrov)) OR petruuuio) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiiv OR petruuiiv) OR (((peteroi OR (petriv OR petrov)) OR petruuuio) OR petr)) o.s.*".