Perhaps you should try some spelling variations:
petriuuuov » peteriuuuov (Expand Search), petriiuuuov (Expand Search), petruiuuuov (Expand Search)
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (Expand Search)
petruio » peteruio (Expand Search), petriuio (Expand Search), petruuio (Expand Search)
petruiio » peteruiio (Expand Search), petriuiio (Expand Search), petruuiio (Expand Search)
petriiuiio » peteriiuiio (Expand Search), petriiiuiio (Expand Search), petruiiuiio (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 ((petriuuuov OR petruv) OR (((peterio OR petruio) OR (petruiio OR petriiuiio)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuuuov OR petruv) OR (((peterio OR petruio) OR (petruiio OR petriiuiio)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriuuuov OR petruv) OR (((peterio OR petruio) OR (petruiio OR petriiuiio)) OR petr)) o.s.*.