Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petruiiv » peteruiiv (Expand Search), petriuiiv (Expand Search), petrouiiv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petruiov » peteruiov (Expand Search), petriuiov (Expand Search), petrouiov (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petroov (Expand Search)
petruuiov » peteruuiov (Expand Search), petriuuiov (Expand Search), petrouuiov (Expand Search)
petr » peter (Expand Search), petri (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 petruiiv) OR ((petru OR ((petruiov OR petrov) OR petruuiov)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriiv OR petruiiv) OR ((petru OR ((petruiov OR petrov) OR petruuiov)) OR petr)) o.s.*".