Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petruiuov (Expand Search), petroiuov (Expand Search)
peru » petru (Expand Search), per (Expand Search)
petruoooov » peteruoooov (Expand Search), petruuoooov (Expand Search), petrouoooov (Expand Search)
petrouv » peterouv (Expand Search), petruouv (Expand Search), petroouv (Expand Search)
petruov » peteruov (Expand Search), petruuov (Expand Search), petrouov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (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 (((petruoooov OR petrouv) OR (petruov OR petriuov)) OR ((peru OR petri) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruoooov OR petrouv) OR (petruov OR petriuov)) OR ((peru OR petri) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petruoooov OR petrouv) OR (petruov OR petriuov)) OR ((peru OR petri) OR petr)) o.s.*.