Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petruiiv » peteruiiv (Expand Search), petruuiiv (Expand Search), petrouiiv (Expand Search)
petruuiiv » peteruuiiv (Expand Search), petruuuiiv (Expand Search), petrouuiiv (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petruio » peteruio (Expand Search), petruuio (Expand Search), petrouio (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 (((petruiiv OR petruuiiv) OR peteriiv) OR (((petero OR petri) OR petruio) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruiiv OR petruuiiv) OR peteriiv) OR (((petero OR petri) OR petruio) OR petr)) o.s.*".