Perhaps you should try some spelling variations:
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petruiuv (Expand Search)
petruiuiov » peteruiuiov (Expand Search), petriuiuiov (Expand Search), petruuiuiov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petriuio » peteriuio (Expand Search), petriiuio (Expand Search), petruiuio (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 petriuv) OR (petruiuiov OR petriov)) OR ((petriuio OR peteruo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriiv OR petriuv) OR (petruiuiov OR petriov)) OR ((petriuio OR peteruo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriiv OR petriuv) OR (petruiuiov OR petriov)) OR ((petriuio OR peteruo) OR petr)) o.s.*.