Perhaps you should try some spelling variations:
petre » petri (Expand Search), petro (Expand Search), petra (Expand Search), petrie (Expand Search), petroe (Expand Search)
petriie » petriiie (Expand Search), petroiie (Expand Search)
petr » petri (Expand Search), petro (Expand Search)
petroov » petrioov (Expand Search), petrooov (Expand Search), petrov (Expand Search)
petru » petriu (Expand Search), petrou (Expand Search), pentru (Expand Search), petri (Expand Search)
petroi » petrioi (Expand Search), petrooi (Expand Search), petri (Expand Search), petro (Expand Search), petrov (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 ((((petre OR petriie) OR (petr OR per)) OR petroov) OR ((petru OR petroi) OR peter)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petre OR petriie) OR (petr OR per)) OR petroov) OR ((petru OR petroi) OR peter)) o.s.*".