Perhaps you should try some spelling variations:
petruiov » petrov (Expand Search), peteruiov (Expand Search), petriuiov (Expand Search), petruuiov (Expand Search)
peteroov » petrov (Expand Search)
petruuov » petrov (Expand Search), peteruuov (Expand Search), petriuuov (Expand Search), petruuuov (Expand Search)
petrouov » petrov (Expand Search), peterouov (Expand Search), petriouov (Expand Search), petruouov (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petruiu (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 (((petruiov OR peteroov) OR ((petruov OR petruuov) OR petrouov)) OR (petriu OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruiov OR peteroov) OR ((petruov OR petruuov) OR petrouov)) OR (petriu OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petruiov OR peteroov) OR ((petruov OR petruuov) OR petrouov)) OR (petriu OR petr)) o.s.*.