Perhaps you should try some spelling variations:
petru » pentru (Expand Search), petri (Expand Search), petriu (Expand Search), petrou (Expand Search), peru (Expand Search)
petruov » pentruov (Expand Search), petriov (Expand Search), petrov (Expand Search), petriuov (Expand Search), petrouov (Expand Search), peruov (Expand Search)
petr » petri (Expand Search), petro (Expand Search), per (Expand Search)
petroi » petrioi (Expand Search), petrooi (Expand Search), peroi (Expand Search), petri (Expand Search), petro (Expand Search), petrov (Expand Search)
peteri » peterdi (Expand Search), petri (Expand Search), peters (Expand Search)

Try widening your search to All Fields.

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 periv) OR petruov) OR petruov) OR petr) OR ((peteri OR petroi) OR peter)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((((petru OR periv) OR petruov) OR petruov) OR petr) OR ((peteri OR petroi) OR peter)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((((petru OR periv) OR petruov) OR petruov) OR petr) OR ((peteri OR petroi) OR peter)) o.s.*.