Perhaps you should try some spelling variations:
petruiov » petrov (Expand Search), peteruiov (Expand Search), petriuiov (Expand Search), peruiov (Expand Search)
petro » petrov (Expand Search), petri (Expand Search), petero (Expand Search), petrio (Expand Search), pero (Expand Search)
peru » per (Expand Search)
petriiuov » peteriiuov (Expand Search), petriiiuov (Expand Search), periiuov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), peru (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), periu (Expand Search)
petr » peter (Expand Search), petri (Expand Search), per (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 (((petriiuov OR petruiov) OR peteruv) OR ((petro OR ((petru OR peru) OR petriu)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriiuov OR petruiov) OR peteruv) OR ((petro OR ((petru OR peru) OR petriu)) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriiuov OR petruiov) OR peteruv) OR ((petro OR ((petru OR peru) OR petriu)) OR petr)) o.s.*.