Perhaps you should try some spelling variations:
peterov » petrov (Expand Search)
petre » petru (Expand Search), petro (Expand Search), petra (Expand Search), petere (Expand Search), petrue (Expand Search), petroe (Expand Search)
petroe » petrole (Expand Search), petro (Expand Search), petrov (Expand Search), peteroe (Expand Search), petruoe (Expand Search), petrooe (Expand Search)
petrou » petru (Expand Search), petro (Expand Search), petrov (Expand Search), peterou (Expand Search), petruou (Expand Search), petroou (Expand Search)
petriuv » peteriuv (Expand Search), petruiuv (Expand Search), petroiuv (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (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 ((peterov OR ((((petre OR petroe) OR peterov) OR petrou) OR petriuv)) OR (petr OR petri)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peterov OR ((((petre OR petroe) OR peterov) OR petrou) OR petriuv)) OR (petr OR petri)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peterov OR ((((petre OR petroe) OR peterov) OR petrou) OR petriuv)) OR (petr OR petri)) o.s.*.