Perhaps you should try some spelling variations:
petriuo » petriso (Expand Search), petroiuo (Expand Search), periuo (Expand Search)
petriu » petris (Expand Search), petroiu (Expand Search), periu (Expand Search)
petruiv » pentruiv (Expand Search), petrouiv (Expand Search), peruiv (Expand Search)
petruiiv » pentruiiv (Expand Search), petrouiiv (Expand Search), peruiiv (Expand Search)
petru » pentru (Expand Search), petrou (Expand Search), peru (Expand Search)
petri » petroi (Expand Search), peri (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 ((petruiv OR petruiiv) OR ((petriuo OR ((petriu OR petri) OR petru)) OR (petr OR peter))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiv OR petruiiv) OR ((petriuo OR ((petriu OR petri) OR petru)) OR (petr OR peter))) o.s.*".