Perhaps you should try some spelling variations:
peru » petru (Expand Search), per (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petruiov » peteruiov (Expand Search), petriuiov (Expand Search), petruuiov (Expand Search)
petriuuiov » peteriuuiov (Expand Search), petriiuuiov (Expand Search), petruiuuiov (Expand Search)
petruuo » peteruuo (Expand Search), petriuuo (Expand Search), petruuuo (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 (((peteruv OR petrov) OR (petruiov OR petriuuiov)) OR ((petruuo OR peru) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peteruv OR petrov) OR (petruiov OR petriuuiov)) OR ((petruuo OR peru) OR petr)) o.s.*".