Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petrio » peterio (Expand Search), petriio (Expand Search), petruio (Expand Search)
petriiio » peteriiio (Expand Search), petriiiio (Expand Search), petruiiio (Expand Search)
petruiiio » peteruiiio (Expand Search), petriuiiio (Expand Search), petruuiiio (Expand Search)
petriiuiio » peteriiuiio (Expand Search), petriiiuiio (Expand Search), petruiiuiio (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 peteruv) OR ((petrio OR ((petriiio OR petruiiio) OR petriiuiio)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteruov OR peteruv) OR ((petrio OR ((petriiio OR petruiiio) OR petriiuiio)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peteruov OR peteruv) OR ((petrio OR ((petriiio OR petruiiio) OR petriiuiio)) OR petr)) o.s.*.