Perhaps you should try some spelling variations:
petruiiv » pentruiiv (Expand Search), peteruiiv (Expand Search), petrouiiv (Expand Search), peruiiv (Expand Search)
petru » pentru (Expand Search), peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petriuuiv » peteriuuiv (Expand Search), petroiuuiv (Expand Search), periuuiv (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (Expand Search)
petrio » peterio (Expand Search), petroio (Expand Search), perio (Expand Search), petris (Expand Search), petro (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search), peri (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 ((petruiiv OR petriuuiv) OR ((((petru OR petr) OR peteruo) OR petrio) OR petri)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiiv OR petriuuiv) OR ((((petru OR petr) OR peteruo) OR petrio) OR petri)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petruiiv OR petriuuiv) OR ((((petru OR petr) OR peteruo) OR petrio) OR petri)) o.s.*.