Perhaps you should try some spelling variations:
peru » petru (Expand Search), per (Expand Search)
petruovu » petrov (Expand Search), peteruovu (Expand Search), petriuovu (Expand Search), petruuovu (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petrou » peterou (Expand Search), petriou (Expand Search), petruou (Expand Search)
petrui » peterui (Expand Search), petriui (Expand Search), petruui (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 (petriov OR (((peru OR petrou) OR (petrou OR petruovu)) OR ((petero OR petrui) OR petr))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petriov OR (((peru OR petrou) OR (petrou OR petruovu)) OR ((petero OR petrui) OR petr))) o.s.*".