Perhaps you should try some spelling variations:
petruioov » peteruioov (Expand Search), petriuioov (Expand Search), petruuioov (Expand Search)
petruuioov » peteruuioov (Expand Search), petriuuioov (Expand Search), petruuuioov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petriuouv » peteriuouv (Expand Search), petriiuouv (Expand Search), petruiuouv (Expand Search)
petruoi » peteruoi (Expand Search), petriuoi (Expand Search), petruuoi (Expand Search)
petruuo » peteruuo (Expand Search), petriuuo (Expand Search), petruuuo (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 ((((petruioov OR petruuioov) OR petriov) OR petriuouv) OR ((petruoi OR petruuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petruioov OR petruuioov) OR petriov) OR petriuouv) OR ((petruoi OR petruuo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petruioov OR petruuioov) OR petriov) OR petriuouv) OR ((petruoi OR petruuo) OR petr)) o.s.*.