Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petrooov » petrov (Expand Search), peterooov (Expand Search), petriooov (Expand Search), petruooov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petrooiov » peterooiov (Expand Search), petriooiov (Expand Search), petruooiov (Expand Search)
petruiooiov » peteruiooiov (Expand Search), petriuiooiov (Expand Search), petruuiooiov (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 petriov) OR (petrooiov OR petruiooiov)) OR petrooov) OR (peteru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((peteruov OR petriov) OR (petrooiov OR petruiooiov)) OR petrooov) OR (peteru OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((peteruov OR petriov) OR (petrooiov OR petruiooiov)) OR petrooov) OR (peteru OR petr)) o.s.*.