Perhaps you should try some spelling variations:
peteriio » peterdi (Expand Search)
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (Expand Search)
petriiuv » peteriiuv (Expand Search), petriiiuv (Expand Search), petruiiuv (Expand Search)
petruuuio » peteruuuio (Expand Search), petriuuuio (Expand Search), petruuuuio (Expand Search)
petruuiio » peteruuiio (Expand Search), petriuuiio (Expand Search), petruuuiio (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 ((petruv OR petriiuv) OR ((petruuuio OR ((peteriio OR petruuiio) OR peteriio)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruv OR petriiuv) OR ((petruuuio OR ((peteriio OR petruuiio) OR peteriio)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petruv OR petriiuv) OR ((petruuuio OR ((peteriio OR petruuiio) OR peteriio)) OR petr)) o.s.*.