Perhaps you should try some spelling variations:
petero » peter (Expand Search), peters (Expand Search), petro (Expand Search)
petriiv » peteriiv (Expand Search), petroiiv (Expand Search), periiv (Expand Search)
petrouiiv » peterouiiv (Expand Search), petroouiiv (Expand Search), perouiiv (Expand Search)
petru » peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search), peri (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 ((petriiv OR petrouiiv) OR (((petru OR pentru) OR petero) OR (petr OR petri))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriiv OR petrouiiv) OR (((petru OR pentru) OR petero) OR (petr OR petri))) o.s.*".