Perhaps you should try some spelling variations:
petru » pentru (Expand Search), petrou (Expand Search), peru (Expand Search)
petrois » petris (Expand Search), petroois (Expand Search), perois (Expand Search)
peris » petris (Expand Search), paris (Expand Search)
petrov » petro (Expand Search), petroov (Expand Search), perov (Expand Search)
petroio » petrooio (Expand Search), peroio (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 ((((petrois OR peris) OR petroio) OR petrov) OR ((petr OR petri) OR peter))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petru OR ((((petrois OR peris) OR petroio) OR petrov) OR ((petr OR petri) OR peter))) o.s.*".