Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petriuuv » peteriuuv (Expand Search), petriiuuv (Expand Search), petruiuuv (Expand Search)
petruiiuuv » peteruiiuuv (Expand Search), petriuiiuuv (Expand Search), petruuiiuuv (Expand Search)
petrou » peterou (Expand Search), petriou (Expand Search), petruou (Expand Search)
petriuo » peteriuo (Expand Search), petriiuo (Expand Search), petruiuo (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 ((peteriov OR (petriuuv OR petruiiuuv)) OR ((petrou OR petriuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriov OR (petriuuv OR petruiiuuv)) OR ((petrou OR petriuo) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peteriov OR (petriuuv OR petruiiuuv)) OR ((petrou OR petriuo) OR petr)) o.s.*.