Perhaps you should try some spelling variations:
peterui » peterdi (Expand Search)
peri » petri (Expand Search), per (Expand Search)
petriv » peteriv (Expand Search), petriiv (Expand Search), petruiv (Expand Search)
petrio » peterio (Expand Search), petriio (Expand Search), petruio (Expand Search)
petruuo » peteruuo (Expand Search), petriuuo (Expand Search), petruuuo (Expand Search)
petriiuuo » peteriiuuo (Expand Search), petriiiuuo (Expand Search), petruiiuuo (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 ((peruv OR petriv) OR ((((petrio OR (peterui OR peri)) OR petruuo) OR petriiuuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peruv OR petriv) OR ((((petrio OR (peterui OR peri)) OR petruuo) OR petriiuuo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peruv OR petriv) OR ((((petrio OR (peterui OR peri)) OR petruuo) OR petriiuuo) OR petr)) o.s.*.