Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petriuiov » peteriuiov (Expand Search), petriiuiov (Expand Search), petruiuiov (Expand Search)
petruo » peteruo (Expand Search), petriuo (Expand Search), petruuo (Expand Search)
petruiio » peteruiio (Expand Search), petriuiio (Expand Search), petruuiio (Expand Search)
petriuo » peteriuo (Expand Search), petriiuo (Expand Search), petruiuo (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 peteriiv) OR petriuiov) OR (((petruo OR petruiio) OR petriuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriiv OR peteriiv) OR petriuiov) OR (((petruo OR petruiio) OR petriuo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriiv OR peteriiv) OR petriuiov) OR (((petruo OR petruiio) OR petriuo) OR petr)) o.s.*.