Perhaps you should try some spelling variations:
peterouv » petrov (Expand Search)
petrooouv » peterooouv (Expand Search), petriooouv (Expand Search), petruooouv (Expand Search)
petriooouv » peteriooouv (Expand Search), petriiooouv (Expand Search), petruiooouv (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petruiu (Expand Search)
petrioiu » peterioiu (Expand Search), petriioiu (Expand Search), petruioiu (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((peterouv OR (petrooouv OR petriooouv)) OR (((petriu OR petrioiu) OR peteru) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peterouv OR (petrooouv OR petriooouv)) OR (((petriu OR petrioiu) OR peteru) OR petr)) o.s.*".