Perhaps you should try some spelling variations:
petru » pentru (Expand Search), petri (Expand Search), peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petruov » pentruov (Expand Search), petriov (Expand Search), petrov (Expand Search), peteruov (Expand Search), petriuov (Expand Search), petrouov (Expand Search)
peterou » peteru (Expand Search), petersu (Expand Search), petrou (Expand Search)
petero » peter (Expand Search), peters (Expand Search), petro (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)
peteriuo » peterdiuo (Expand Search), peteruo (Expand Search), petriuo (Expand Search)
peteri » peterdi (Expand Search), peter (Expand Search), petri (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 petruov) OR (((peterou OR petero) OR peteriuo) OR (petr OR (peteri OR per)))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petru OR petruov) OR (((peterou OR petero) OR peteriuo) OR (petr OR (peteri OR per)))) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petru OR petruov) OR (((peterou OR petero) OR peteriuo) OR (petr OR (peteri OR per)))) o.s.*.