Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
peterui » peterdi (Expand Search)
peteruio » peterdio (Expand Search), peterdi (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petrv » peterv (Expand Search), petriv (Expand Search), petruv (Expand Search)
petruuio » peteruuio (Expand Search), petriuuio (Expand Search), petruuuio (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 (((peteruov OR petruov) OR petrv) OR ((peterui OR (petruuio OR peteruio)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peteruov OR petruov) OR petrv) OR ((peterui OR (petruuio OR peteruio)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((peteruov OR petruov) OR petrv) OR ((peterui OR (petruuio OR peteruio)) OR petr)) o.s.*.