Perhaps you should try some spelling variations:
peteruiv » peterdi (Expand Search)
peteriiv » peterdi (Expand Search)
petruiv » peteruiv (Expand Search), petriuiv (Expand Search), petruuiv (Expand Search)
petruiuiv » peteruiuiv (Expand Search), petriuiuiv (Expand Search), petruuiuiv (Expand Search)
petriio » peteriio (Expand Search), petriiio (Expand Search), petruiio (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (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 ((((petruiv OR peteruiv) OR petruiuiv) OR peteriiv) OR ((petriio OR petruov) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petruiv OR peteruiv) OR petruiuiv) OR peteriiv) OR ((petriio OR petruov) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petruiv OR peteruiv) OR petruiuiv) OR peteriiv) OR ((petriio OR petruov) OR petr)) o.s.*.