Perhaps you should try some spelling variations:
petruo » petro (Expand Search), pentruo (Expand Search), petrouo (Expand Search), peruo (Expand Search)
petriu » petris (Expand Search), petroiu (Expand Search), periu (Expand Search)
petru » pentru (Expand Search), petrou (Expand Search), peru (Expand Search)
petruiu » pentruiu (Expand Search), petrouiu (Expand Search), peruiu (Expand Search)
petri » petroi (Expand Search), peri (Expand Search)
petrouiiv » petroouiiv (Expand Search), perouiiv (Expand Search)
petr » petro (Expand Search), per (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petri OR petrouiiv) OR ((petruo OR ((petriu OR petru) OR petruiu)) OR (petr OR peter))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petri OR petrouiiv) OR ((petruo OR ((petriu OR petru) OR petruiu)) OR (petr OR peter))) o.s.*".