Perhaps you should try some spelling variations:
petre » petri (Expand Search), petro (Expand Search), petra (Expand Search), petrie (Expand Search), petroe (Expand Search), pere (Expand Search)
petr » petri (Expand Search), petro (Expand Search), per (Expand Search)
petriv » petriiv (Expand Search), petroiv (Expand Search), periv (Expand Search), petri (Expand Search), petris (Expand Search)
petru » petriu (Expand Search), petrou (Expand Search), peru (Expand Search), pentru (Expand Search), petri (Expand Search)
petroi » petrioi (Expand Search), petrooi (Expand Search), peroi (Expand Search), petri (Expand Search), petro (Expand Search), petrow (Expand Search)
petrov » petriov (Expand Search), petroov (Expand Search), perov (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 petr) OR (petriv OR petriv)) OR ((petru OR (petroi OR petrov)) OR peter)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petre OR petr) OR (petriv OR petriv)) OR ((petru OR (petroi OR petrov)) OR peter)) o.s.*".