Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petruuov » petrov (Expand Search), peteruuov (Expand Search), petriuuov (Expand Search), petrouuov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petruo » peteruo (Expand Search), petriuo (Expand Search), petrouo (Expand Search)
petriuuo » peteriuuo (Expand Search), petriiuuo (Expand Search), petroiuuo (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 ((peteruov OR petruuov) OR (((petru OR petruo) OR (petriuuo OR peteruiuuo)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteruov OR petruuov) OR (((petru OR petruo) OR (petriuuo OR peteruiuuo)) OR petr)) o.s.*".