Perhaps you should try some spelling variations:
petruov » petrov (Expand Search), petriuov (Expand Search), petrouov (Expand Search), peruov (Expand Search), pentruov (Expand Search), petriov (Expand Search)
peris » petris (Expand Search), paris (Expand Search)
petr » petri (Expand Search), petro (Expand Search), per (Expand Search)
petru » petriu (Expand Search), petrou (Expand Search), peru (Expand Search), pentru (Expand Search), petri (Expand Search)
petruiu » petriuiu (Expand Search), petrouiu (Expand Search), peruiu (Expand Search), pentruiu (Expand Search), petriiu (Expand Search)
petrooi » petriooi (Expand Search), petroooi (Expand Search), perooi (Expand Search)
petriow » petriiow (Expand Search), petroiow (Expand Search), periow (Expand Search), petrow (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 (petruov OR (peris OR ((((petr OR petru) OR petruiu) OR (petrooi OR petriow)) OR peter))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petruov OR (peris OR ((((petr OR petru) OR petruiu) OR (petrooi OR petriow)) OR peter))) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (petruov OR (peris OR ((((petr OR petru) OR petruiu) OR (petrooi OR petriow)) OR peter))) o.s.*.