Perhaps you should try some spelling variations:
petru » pentru (Expand Search), petrou (Expand Search), peru (Expand Search)
petrov » petro (Expand Search), petroov (Expand Search), perov (Expand Search)
petrio » petris (Expand Search), petro (Expand Search), petroio (Expand Search), perio (Expand Search)
petroiuv » petrooiuv (Expand Search), peroiuv (Expand Search)
petrouio » petroouio (Expand Search), perouio (Expand Search)
petr » petro (Expand Search), per (Expand Search)
petri » 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 (((petru OR petrov) OR petroiuv) OR ((petrio OR petrouio) OR ((petr OR peter) OR petri))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petru OR petrov) OR petroiuv) OR ((petrio OR petrouio) OR ((petr OR peter) OR petri))) o.s.*".