Perhaps you should try some spelling variations:
petre » petro (Expand Search), petra (Expand Search), petere (Expand Search), petroe (Expand Search)
petru » pentru (Expand Search), peteru (Expand Search), petrou (Expand Search)
peterv » peter (Expand Search), peters (Expand Search)
petrov » petro (Expand Search), peterov (Expand Search), petroov (Expand Search)
petr » peter (Expand Search), petro (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search)
petero » peter (Expand Search), peters (Expand Search), petro (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 petru) OR peterv) OR (petrov OR (((petr OR petero) OR petri) OR per))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petre OR petru) OR peterv) OR (petrov OR (((petr OR petero) OR petri) OR per))) o.s.*".