Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petruouov » peteruouov (Expand Search), petriuouov (Expand Search), petruuouov (Expand Search)
petruuo » peteruuo (Expand Search), petriuuo (Expand Search), petruuuo (Expand Search)
petruuuo » peteruuuo (Expand Search), petriuuuo (Expand Search), petruuuuo (Expand Search)
petruioi » peteruioi (Expand Search), petriuioi (Expand Search), petruuioi (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 ((peteriov OR (petruouov OR peteriov)) OR (((petruuo OR petruuuo) OR petruioi) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriov OR (petruouov OR peteriov)) OR (((petruuo OR petruuuo) OR petruioi) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peteriov OR (petruouov OR peteriov)) OR (((petruuo OR petruuuo) OR petruioi) OR petr)) o.s.*.