Perhaps you should try some spelling variations:
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petruiu » peteruiu (Expand Search), petriuiu (Expand Search), petruuiu (Expand Search)
petruuiu » peteruuiu (Expand Search), petriuuiu (Expand Search), petruuuiu (Expand Search)
petrioiuo » peterioiuo (Expand Search), petriioiuo (Expand Search), petruioiuo (Expand Search)
petruioiuo » peteruioiuo (Expand Search), petriuioiuo (Expand Search), petruuioiuo (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((peterov OR petriiv) OR (((petruiu OR petruuiu) OR (petrioiuo OR petruioiuo)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peterov OR petriiv) OR (((petruiu OR petruuiu) OR (petrioiuo OR petruioiuo)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peterov OR petriiv) OR (((petruiu OR petruuiu) OR (petrioiuo OR petruioiuo)) OR petr)) o.s.*.