Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
petriiuov » peteriiuov (Expand Search), petriiiuov (Expand Search), petruiiuov (Expand Search)
petriiuo » peteriiuo (Expand Search), petriiiuo (Expand Search), petruiiuo (Expand Search)
petriuuo » peteriuuo (Expand Search), petriiuuo (Expand Search), petruiuuo (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop (((peteruov OR petriiuov) OR petriiov) OR (((petriiuo OR petriuuo) OR petriuuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peteruov OR petriiuov) OR petriiov) OR (((petriiuo OR petriuuo) OR petriuuo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((peteruov OR petriiuov) OR petriiov) OR (((petriiuo OR petriuuo) OR petriuuo) OR petr)) o.s.*.