Perhaps you should try some spelling variations:
peteriio » peterdi (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petruuiuiv » peteruuiuiv (Expand Search), petriuuiuiv (Expand Search), petruuuiuiv (Expand Search)
petriio » peteriio (Expand Search), petriiio (Expand Search), petruiio (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (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 (((petriiv OR petruuiuiv) OR petriiv) OR (((petriio OR peteriio) OR petruov) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriiv OR petruuiuiv) OR petriiv) OR (((petriio OR peteriio) OR petruov) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriiv OR petruuiuiv) OR petriiv) OR (((petriio OR peteriio) OR petruov) OR petr)) o.s.*.