Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petruio » peteruio (Expand Search), petriuio (Expand Search), petruuio (Expand Search)
petriio » peteriio (Expand Search), petriiio (Expand Search), petruiio (Expand Search)
petruiio » peteruiio (Expand Search), petriuiio (Expand Search), petruuiio (Expand Search)
petruiiio » peteruiiio (Expand Search), petriuiiio (Expand Search), petruuiiio (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 ((peteruo OR ((petruio OR (petriio OR petruiio)) OR petruiiio)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (peteriov OR ((peteruo OR ((petruio OR (petriio OR petruiio)) OR petruiiio)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (peteriov OR ((peteruo OR ((petruio OR (petriio OR petruiio)) OR petruiiio)) OR petr)) o.s.*.