Perhaps you should try some spelling variations:
petruov » peteruov (Expand Search), petriuov (Expand Search), petrouov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petrou » peterou (Expand Search), petriou (Expand Search), petroou (Expand Search)
petroio » peteroio (Expand Search), petrioio (Expand Search), petrooio (Expand Search)
petrouuo » peterouuo (Expand Search), petriouuo (Expand Search), petroouuo (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop (petruov OR ((((petru OR petrou) OR petroio) OR (petrouuo OR peteriuuo)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petruov OR ((((petru OR petrou) OR petroio) OR (petrouuo OR peteriuuo)) OR petr)) o.s.*".