Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petriuuuov » peteriuuuov (Expand Search), petriiuuuov (Expand Search), petruiuuuov (Expand Search)
petriiuuuov » peteriiuuuov (Expand Search), petriiiuuuov (Expand Search), petruiiuuuov (Expand Search)
petroi » peteroi (Expand Search), petrioi (Expand Search), petruoi (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (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 ((peteruov OR (petriuuuov OR petriiuuuov)) OR (((petero OR petroi) OR petriiv) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteruov OR (petriuuuov OR petriiuuuov)) OR (((petero OR petroi) OR petriiv) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peteruov OR (petriuuuov OR petriiuuuov)) OR (((petero OR petroi) OR petriiv) OR petr)) o.s.*.