Perhaps you should try some spelling variations:
petruuiov » peteruuiov (Expand Search), petriuuiov (Expand Search), petruuuiov (Expand Search)
petriiiuuiov » peteriiiuuiov (Expand Search), petriiiiuuiov (Expand Search), petruiiiuuiov (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petriiuo » peteriiuo (Expand Search), petriiiuo (Expand Search), petruiiuo (Expand Search)
petriiiuo » peteriiiuo (Expand Search), petriiiiuo (Expand Search), petruiiiuo (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 ((petruuiov OR petriiiuuiov) OR ((petruov OR (petriiuo OR petriiiuo)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruuiov OR petriiiuuiov) OR ((petruov OR (petriiuo OR petriiiuo)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petruuiov OR petriiiuuiov) OR ((petruov OR (petriiuo OR petriiiuo)) OR petr)) o.s.*.