Perhaps you should try some spelling variations:
petriiiuv » peteriiiuv (Expand Search), petriiiiuv (Expand Search), petroiiiuv (Expand Search)
petruiuv » peteruiuv (Expand Search), petriuiuv (Expand Search), petrouiuv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petrioio » peterioio (Expand Search), petriioio (Expand Search), petroioio (Expand Search)
petroiuo » peteroiuo (Expand Search), petrioiuo (Expand Search), petrooiuo (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (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 ((petriiiuv OR petruiuv) OR (((petru OR petrioio) OR petroiuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriiiuv OR petruiuv) OR (((petru OR petrioio) OR petroiuo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriiiuv OR petruiuv) OR (((petru OR petrioio) OR petroiuo) OR petr)) o.s.*.