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