Perhaps you should try some spelling variations:
petruov » petrov (Expand Search), peteruov (Expand Search), petruuov (Expand Search), petrouov (Expand Search)
petriuuiov » peteriuuiov (Expand Search), petruiuuiov (Expand Search), petroiuuiov (Expand Search)
petruoi » peteruoi (Expand Search), petruuoi (Expand Search), petrouoi (Expand Search)
petriiio » peteriiio (Expand Search), petruiiio (Expand Search), petroiiio (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (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 (petriuuiov OR (((petruoi OR petruov) OR petriiio) OR (petr OR petri))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petriuuiov OR (((petruoi OR petruov) OR petriiio) OR (petr OR petri))) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (petriuuiov OR (((petruoi OR petruov) OR petriiio) OR (petr OR petri))) o.s.*.