Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
petriuiiov » peteriuiiov (Expand Search), petriiuiiov (Expand Search), petruiuiiov (Expand Search)
petroov » peteroov (Expand Search), petrioov (Expand Search), petruoov (Expand Search)
petriuou » peteriuou (Expand Search), petriiuou (Expand Search), petruiuou (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 (petriiov OR petriuiiov)) OR petroov) OR ((petriuou OR peteriou) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peteriov OR (petriiov OR petriuiiov)) OR petroov) OR ((petriuou OR peteriou) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((peteriov OR (petriiov OR petriuiiov)) OR petroov) OR ((petriuou OR peteriou) OR petr)) o.s.*.