Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petruuiuuov » peteruuiuuov (Expand Search), petriuuiuuov (Expand Search), petruuuiuuov (Expand Search)
petruuv » peteruuv (Expand Search), petriuuv (Expand Search), petruuuv (Expand Search)
petruuuv » peteruuuv (Expand Search), petriuuuv (Expand Search), petruuuuv (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 petruov) OR petruuiuuov) OR peterv) OR (petruuv OR petruuuv)) OR petr) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((((peteriov OR petruov) OR petruuiuuov) OR peterv) OR (petruuv OR petruuuv)) OR petr) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((((peteriov OR petruov) OR petruuiuuov) OR peterv) OR (petruuv OR petruuuv)) OR petr) o.s.*.