Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petruiv » peteruiv (Expand Search), petriuiv (Expand Search), petruuiv (Expand Search)
petruuiiv » peteruuiiv (Expand Search), petriuuiiv (Expand Search), petruuuiiv (Expand Search)
petriiiv » peteriiiv (Expand Search), petriiiiv (Expand Search), petruiiiv (Expand Search)
petruiiiiv » peteruiiiiv (Expand Search), petriuiiiiv (Expand Search), petruuiiiiv (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 ((petruiv OR ((petruuiiv OR (petriiiv OR petruiiiiv)) OR peteriiv)) OR (petruov OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiv OR ((petruuiiv OR (petriiiv OR petruiiiiv)) OR peteriiv)) OR (petruov OR petr)) o.s.*".