Perhaps you should try some spelling variations:
petruiov » petrov (Expand Search), peteruiov (Expand Search), petruuiov (Expand Search), petrouiov (Expand Search)
peteriov » petrov (Expand Search)
petruv » peteruv (Expand Search), petruuv (Expand Search), petrouv (Expand Search)
petriiuv » peteriiuv (Expand Search), petruiiuv (Expand Search), petroiiuv (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (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 (((petruiov OR peteriov) OR ((petruv OR peteruv) OR petriiuv)) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruiov OR peteriov) OR ((petruv OR peteruv) OR petriiuv)) OR (petri OR petr)) o.s.*".